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Calculator Book Addendum

New Calculators for The Collector's Guide to Pocket Calculators

The Collector's Guide to Pocket Calculators lists over 1,500 models of early pocket calculators from over 220 companies.

If you have an early pocket calculator (from the 1970s with LED, vacuum fluorescent, discharge, or early LCD display, and battery powered) which is not in The Collector's Guide, please email the details as in the list below for inclusion here.

Details for each calculator are required in the format used in the book, and below:
Manufacturer or Trading Company, Model Name or Number (there may be more than one), Functions, Display Type, Battery type (and if rechargeable), Size, Country of Manufacture, any Interesting Features.

A small frontal photograph (jpeg format, about 600 pixels max dimension) of each would be useful and will be included with the details if of good quality.
Please email with details.

New Calculators

Latest Update - latest additions have the date added.

Go to   S



Sakura (Japanese company)

  • 832, 4-function, %, memory, sq. rt., green VFD, 2-AA rep. batt., 120x74x18mm / 4.7x2.9x0.7, Korea. Photo.

Sandvik Coromant (Swedish company which describes itself as "the world's leading manufacturer of cutting tools for the metalworking industry")

  • 842S, 4-function, square root, metal cutting data functions, blue VFD, 2- AA rep. batt., 74x129x25mm / 2.9x5.1x1.0", Japan, c1978, made by Omron. Photo. Featured calculator.

Samsung (South Korean company)

  • 801M aka Secal 801M, 4-funct, %, mem, sgn chg, 8 digit red LED, sealed batt, 3.0x5.25" same as Candle Mini 801M, Korea.
  • 805D aka Secal 805D, 4-funct, %, mem, 8 digit green VFD, 4-AA rep batt, 80x140x38mm / 3.1x5.5x1.5" c1975. Photo.
  • 805E aka Secal 805E, 4-funct, %, mem, square root. Photo.


  • 004, 4-function, red LED, PP3 rep. batt., 65x113x24mm / 2.6x4.5x0.9", similar to Sands 004. Photo .
  • 900, 4-function, %, red LED, rechargeable battery pack, very tiny, 2.0x3.5", all metal case with sliding back cover. Photo.


  • RM-800, 4-function, %, memory, sq rt, green VFD.

Santron (Sold in European market.)

  • 12S, listed in book.
  • 15S, 4-function, red LED. Photo. May 14.
  • 18S, 4-function, %, red LED, 2-AA rep. batt., 94x117x22mm / 3.7x4.6x0.9",  Taiwan. Photo .
  • 20S, 4-funct, %, green VFD, 64x114x20mm / 2.5x4.5x0.8", chip Hitachi HD37330, Japan, c1976. Photo .
  • 22SR, 4-funct, %, sq rt, green VFD, sealed batt, 2.75x5.0", flat, all-metal.
  • 48SR, 4-funct, %, memory, sq rt, green VFD, flat, all-metal.
  • 80, 4-funct, %, memory, red LED. Photo . May 14.
  • 80S, 4-funct, %, sq rt, red LED. Photo .
  • 96SR, scientific, green VFD, rechargeable battery, flat, all-metal, in wallet. Photo.
  • 300SR, listed in book.
  • 400, listed in book.
  • 404, listed in book.
  • 407, listed in book.
  • 425, 4-funct, %, sq rt, LED, 2-AA rep batt, 76x128x35mm / 3.0x5.0x1.4". Photo.
  • 604, listed in book.
  • 624, listed in book.
  • 721, listed in book.
  • 723, 4-function, %, π, sq. rt., green VFD, 2-AA rep. batt., 124x72x21mm / 4.9x2.8x0.8", Japan. Photo .
  • 725, listed in book.
  • 755, listed in book.

Sanyo (Japanese manufacturer)

  • CX-1032, listed in book. Photo.
  • CX-2007, listed in book.
  • CX-8001, listed in book.
  • CX-8001B 'Sacom Mini', 4-func, 8-digits blue VFD tubes, 4x AA, 83x148x36mm / 3.25x5.8x1.4", Japan. Photo , inside.
  • CX-8003A, listed in book.
  • CX-8032 4-funct, %, sgn chg, 8 digit green fluor, 2-AA rep batt, 3.1x5.5", front panel is made from aluminum, back from plastic, Japan.
  • CX-8100, 4 function, green fluorescent, 4-C rep batt, 4.4x7.4", Japan, ~1973. Photo.
  • CX-8105, listed in book. Photo.
  • CX-8133 4-funct, mem, %, sgn chg, sq rt, 8 digit green fluor, 2-AA rep batt, 3.25x5.75", front panel is made from aluminum, back from plastic, has plastic cover that slides over front of calculator, Japan. Photo.
  • CX-8136N, listed in book.
  • CX-8136NE, 4-functions, memory, square root, green VFD, c1977. Photo.
  • CX-8191, listed in book.
  • CY-8150 4-funct, mem, %, sq rt, sgn chg, green VFD, 4-D rep batt, 6.0x9.5", desktop size, Japan.
  • CZ-3, scientific, green VFD, Japan. Photo. Jan 15.
  • CZ-0111, listed in book.
  • CZ-2172 "Scientific 102", scientific. Photo. May 14.
  • CZ-8101, listed in book.
  • CZ-8124, scientific, green VFD, 4-AA rep. batt., 143x83x32mm / 5.6x3.3x1.3, Japan ~1975. Photo .
  • CZ-8141, listed in book.
  • CZ-8142 scientific, green fluor, 2-AA rep batt, 3.1x5.8", front panel is made from aluminum, back from plastic, Japan. Photo.
  • ICC-0081, listed in book.
  • ICC-82D, listed in book. Featured calculator.
  • ICC-083, listed in book.
  • ICC-802D, listed in book.
  • ICC-804D, listed in book.
  • ICC-804DE, listed in book.
  • ICC-807D, listed in book.
  • ICC-808D, listed in book.
  • ICC-809, listed in book. Featured calculator.
  • ICC-810, listed in book.
  • ICC-1417, 4 function, memory, 14 orange digits using separate tubes, 5-C rechargeable cells in sealed pack & built-in AC charger, 227x250x72mm / 9.0x9.9x2.8", battery meter, slide out carrying handle, Japan, 1971. Photo, inside .


  • 8M, listed in book.

SCM (see Smith Corona Marchant)

SCAT (SC Applied Technology Inc., South Carolina, U.S.A.)

  • THE DIMENSION, feet and inches calculator, red LED, 9v PP3 rep. batt., 68x127x50mm / 2.7x5.0x2.0". Photo. Featured calculator.
  • the solution, liquid concentration calculator, red LED, 9v PP3 rep. batt., 68x127x50mm / 2.7x5.0x2.0". Photo.


  • XS-5297 Scientific 4-funct, mem, %, 8 digit red LED, PP3 rep batt, 172x132x25mm / 6.75x5.2x1", Hong Kong. Photo.

Scomark (European market calculator)

  • Super G99M 4-funct, mem, %, sq rt, 8 digit fluor, 2-AA rep batt, 2.7x5.0", Singapore. Photo .

Sears (U.S. (Sears, Roebuck & Co.) and Canadian (Simpson-Sears) department store chains)

  • 8 aka 728.58862 and 728.58863, listed in book.
  • 8m aka 801.58240, listed in book.
  • 10M aka 728.5825, listed in book.
  • 12PP aka 272.58010, listed in book.
  • 82 aka 711.58151, listed in book. Photo .
  • 800, 4-funct, mem, %, 8 digit red LED, 9V rep batt, 2.75x5.5", similar case as Novus 850, Hong Kong.
  • 58824, listed in book.
  • 728.5822, listed in book.
  • 728.58821, listed in book. Photo.
  • 801.58190, listed in book.
  • AC/DCD, listed in book.
  • Digi-matic 8, (same as 728.5822 ?). Photo (missing sliding cover).
  • Digi-matic D-8 aka Scientific Brain, listed in book.
  • Digi-matic M8-2, 4-function, %, memory, red LED.
  • Digi-matic MR10, 4-function, %, memory, sq rt., red LED. Photo .
  • Digi-matic P-8, 4-function, %, red LED. Photo.
  • Digi-matic SR-8, 4-function, %, memory, sq rt., blue VFD. Photo.
  • Digi-matic T-8 aka 41029, listed in book.
  • Electronic Slide Rule aka 801.58770, listed in book.
  • Electronic Slide Rule II aka 801.58780, listed in book.
  • F85 aka 711.58240, listed in book.
  • M8 aka 801.58870, listed in book. Photo .
  • Micro PD12 aka 272.58020, listed in book.
  • MR-10, aka Digi-matic MR-10, 4-funct, mem, %, sq rt, recip, sgn chg, 8 digit red LED, sealed batt, 3.0x5.9", notes "made for Simpsons, Sears and Simpsons," Bowmar case style similarity, USA.
  • PPD-12 aka 272.58020, listed in book.
  • Universal Converter aka 801.58840, listed in book.
  • "Wizard", 8 digits red LED, 4 function, %, 9v (PP3) rep. batt., 91x150x31mm / 3.6x5.9x1.2", in the shape of a wizard, Copyright Vanity Fair Ind Inc 1979, Hong Kong. Photo.

Semicomps Limited (British marketing company. See also Calate.)

  • Calate, 4-functions, red LED,  2- AA rech. batt., 80x142x47mm / 3.1x5.6x1.8", England, has a membrane keypad and uses rotary switches, similar to the Supacal Calate. Photo. Featured British Calculator.

Sharp (Japanese manufacturer) Models often marked "Elsi Mate".

  • CS-1120, listed in book.
  • EL-8, listed in book. Featured calculator.
  • EL-8A, listed in book.
  • EL-8M, listed in book.
  • EL-102M, listed in book.
  • EL-102R, listed in book.
  • EL-104, listed in book. Photo.
  • EL-105, 4-funct, %, sq rt, 8-digit green VFD. Photo.
  • EL-120, listed in book.
  • EL-121 4-funct, 6 digit green fluor display, 3-AA rep batt, 6.75x2.5", horizontal, same case as EL-120 but with dark blue-black top & white base, has unique trigger-operated counting feature, Japan.
  • EL-122, listed in book.
  • EL-201, listed in book.
  • EL-201S, listed in book.
  • EL-204 4-funct, mem, %, sq rt, sgn chg, 8 digit red LED (unusual for Sharps to have LED), 9V rep batt, 3.0x5.0", Japan.
  • EL-210, listed in book.
  • EL-215, listed in book.
  • EL-215S, listed in book. Photo, inside.
  • EL-307, 4-func, %, mem, sq rt, 10 digits green VFD, 102x160x23mm / 4x6.3x1", Japan. Photo .
  • EL-500, listed in book. Photo.
  • EL-500S, listed in book.
  • EL-501, listed in book.
  • EL-502, listed in book. Photo.
  • EL-801, listed in book. Featured calculator.
  • EL-805, listed in book, the first hand-held LCD calculator. PhotoFeatured calculator.
  • EL-805M, listed in book.
  • EL-808, listed in book, early LCD. Photo. Featured calculator.
  • EL-811, listed in book. Featured calculator.
  • EL-814, 4-functions, memory, red LED, 5-AA rep. batt., 94x149x32mm / 3.7x5.9x1.25", Japan, has cover over keyboard which slides up for use and provides a shade for the display. Photo, inside.
  • EL-816, listed in book.
  • EL-1063, listed in book.
  • EL-1101, 4-func, %, mem, green VFD, 4-AA rech. batt. pack, 105x175x43mm / 4.1x6.9x1.7", c1975, Japan. Photo .
  • EL-1106S, listed in book.
  • EL-1163, listed in book. Photo.
  • EL-1186, listed in book.
  • EL-1621, listed in book.
  • EL-5000 sci-funct, green fluor, 4-AA rep batt or replaceable sealed batt pack, 3.5x5.7", case labeled "39 function", Japan.
  • EL-5001, listed in book.
  • EL-5002, scientific, green VFD. Photo. May 14.
  • EL-5801, scientific, 8 & 2 digits green VFD, 79x147x21mm / 3x5.75x0.8", Japan. Photo .
  • EL-8000R 4-funct, %, sq rt, green fluor, 4-AA rep batt, 3.5x5.5", same case as EL-8005 except had brown color, very stylish, Japan.
  • EL-8001, 4 function, 8 digits reflective LCD, 4-C rep batt, 5.7x8.4", Japan, 1973. Fixed hood has window to illuminate the display. Photo. Featured calculator.
  • EL-8002, listed in book. Photo.
  • EL-8005, listed in book.
  • EL-8005S, listed in book. Photo.
  • EL-8008, listed in book. Photo, display.
  • EL-8009, listed in book. Photo with EL-8019. Featured calculator.
  • EL-8009S, similar to EL-8009, but with separate C CE keys. Photo. Featured calculator.
  • EL-8010, listed in book. Photo1, Photo2. Featured calculator.
  • EL-8011, listed in book.
  • EL-8015, listed in book. Photo. Featured calculator.
  • EL-8016, listed in book.
  • EL-8016R, listed in book. Photo.
  • EL-8018, listed in book.
  • EL-8019, yellow LCD, 4 function, %, square root, folding "compact" case similar to EL-8009. Photo.
  • EL-8031, 4 function, %, square root, green VFD, 2-AA rep batt, 3.2x5.1", Japan. Photo.
  • EL-8031S, then same as EL-8031 except made in Korea. Photo.
  • EL-8051, listed in book.
  • EL-8100, listed in book. Photo.
  • EL-8100S, listed in book.
  • EL-8104, listed in book.
  • EL-8106, listed in book.
  • EL-8110, listed in book. Photo. Featured calculator.
  • EL-8112S, 4-function, %, memory, square root, green VFD, 2-AA rep batt, 76x128x22mm / 3.0x5.0x0.9", Japan. Photo.
  • EL-8113, listed in book.
  • EL-8114, listed in book.
  • EL-8115S, listed in book.
  • EL-8116, listed in book. Photo.
  • EL-8117, listed in book.
  • EL-8117K, listed in book.
  • EL-8118, listed in book.
  • EL-8131, 4-funct, mem, sq rt, has a "X -> M" key which transfers the display to memory, fluor, 2-AA batt, Korea. Photo.
  • EL-8300, listed in book.
  • ELSI MATE 6, 4-funct, 6-digits fluor (<-> key shows 6 further digits), 3-AA batt, 92x141x40mm / 3.6x5.5x1.6", Japan. Photo.
  • PC-1201 "Pocket Computer", Scientific programmable, 10-digits mantissa & 2-digits exponent green VFD, 2- AA rep. batt. & 2- button cells, 81x151x22mm / 3.2x5.9x0.9", Japan, the button cells provide power to maintain the program and memory while the calculator is turned off. Photo.
  • PC-1801, 4-funct, limited scientific, 8-digit red LED, 5x AA rep batt, 94x148x36mm / 3.7x5.8x1.4", c1973, Japan, very large LEDs (5mm/0.2"). Photo, inside.
  • PC-1802, listed in book.
  • QT-8B, listed in book, the first hand-held electronic calculator. Photo, connected to charging unit. Featured calculator.

Sheen (reported as "made in the far east by Hutchison")

  • 004, listed in book, similar to Sands 004. Photo.
  • 906, 4-function, 8-digits red LED, Hong Kong, c1976. Photo.
  • 1000, limited scientific, 8-digits red LED, 9v (PP3) rep batt. Photo.
  • "Scientific programmable" model 2000, scientific, programmable, RPN, 8-digits red LED, Hong Kong. Photo .



Silver Reed (From Silver Seiko International, European market calculators)

  • 8, listed in book.
  • 8J, 4 function, %, memory, sq rt, green VFD, 2-AA rep batt, 80x124x22mm / 3.1x4.9x0.9", Japan. Photo .
  • 8M, listed in book. Photo type 1. Photo type 2.
  • 8R, 4 function, %, sq rt, green VFD, 2-AA rep batt, 80x124x22mm / 3.1x4.9x0.9". Photo .
  • 80, 4 function, %, memory, sq rt, green VFD, 1-AA rep batt, 73x116x19mm / 2.9x4.6x0.75", c1978. Photo .
  • 81, 4 function, %, memory, square root, green fluorescent, 1-AA rep batt, 2.9x4.6". Photo.
  • 82, listed in book.
  • 95, 4 function, %, green fluorescent, 2-AA rep batt, 3.0x5.0", country of manufacture unknown. Photo .
  • 101 pocket PD aka MINI 101 DP, 4 function, %, memory, 10 digits, green fluorescent & printer, 4- AA rechargeable batt, 4.9x8.9", made in Japan, Silver Seiko International. Photo.
  • Memory, 4-funct, %, mem, 8 digit LED disp, PP3 rep batt, 68x135x23mm / 2.7x5.3x0.9", Hong Kong. Photo .
  • Mini IV, listed in book. Photo.
  • Mini Calc 4-funct, mem, 8 digit LED displ, 2.5x4.5" (6.5x11.6 cm), similar to miniaturized Rockwell case style, 9V rep batt. Photo.
  • MINI-M, 4 function, %, memory, red LED, 9v rep batt, 2.9x5.8", Hong Kong, ~1977. Photo.
  • SE-8, 4 function, %, green VFD, 4- AA rep batt, 95x136x29mm / 3.75x5.4x1.1", Japan. Photo black version , Photo cream version.
  • SE-8S aka HANDY, 4 function, green VFD.
  • SR 104, listed in book. Photo.

Sinclair (English company) For further details and photographs see Sinclair calculators on this site.

Singer-Friden (U.S. company)

  • No model number, 4-funct, blue VFD, rech batt, Japan, same as Hitachi KK-181B. Photo. Jan 14.
  • 123, listed in book. Photo, inside.
  • 1008, listed in book. Photo, inside.
  • 1200, 4-funct, %, 8-digit fluor, 4-AA rech batt pack, 112x167x37mm / 4.4x6.6x1.5", Japan. Similar to Hitachi KK 221B. Photo.
  • 1207, listed in book.
  • 1234, listed in book. Photo.


  • Sr-03, listed in book.

Smith Corona Marchant (SCM) (U.S. company)

  • Marchant 1, listed in book.
  • Marchant 210, listed in book.
  • Marchant F80, listed in book.
  • Smith-Corona 6612, 4-function, 6 digits, green VFD, 4-AA rep batt, 95x137x28mm / 3.75x5.4x1.1", Japan. Photo .

SMOP Digital  Systems Ltd. (Rotorua, New Zealand)

  • Tote Buster, red LED & thermal printer, calculates horse-racing form only (no normal functions), 98x184x39mm / 3.9x7.25x1.5", "designed and programmed by SMOP", made in Japan, c1981. Photo, photo inside.


  • 888p, 4-function, %, red LED, 9v PP3 rep batt, Hong Kong, similar to MD1. Photo.


  • 8280, listed in book.
  • 8300, listed in book.
  • 8309, listed in book.
  • 8400, listed in book.


  • 508A, 4-function, %, red LED, 9 volt batt., 109x71x22mm / 4.3x2.8x0.9", Singapore. Photo .
  • 806, 4-function, red LED, 9v rep batt, 2.9x5.4", Singapore, ~1974. Photo.
  • 808, 4-function, %, memory, red LED, 9v rep batt, 2.9x5.4", Singapore, ~1976.
  • 908, listed in book.
  • 908A, similar to 908. Photo.

Specialized Electronics Corporation (SEC) (U.S. company)

  • Nav-16 aka Navatronic 16, listed in book. Featured calulator.
  • Nav-1701t aka Navatronic 1701t, listed in book.

Spectrum (U.S. company)

  • SP-70, listed in book.

Sperry Remington Rand (USA company)

  • 661, listed in book. Photo.
  • 661D, listed in book. Featured calculator.
  • 663, listed in book.
  • 665, listed in book.
  • 667, listed in book.
  • 801B 4-funct, fluor, 6-AA rep batt, 5.75x8.5", desktop size.
  • 803-B, 4-function, green VFD tubes, 5-AA rep batt, 115x 179x51mm / 4.5x7.0x2.0", Japan, 1972. Photo .
  • 803C, listed in book.
  • 807B, listed in book. Photo, inside.
  • 809SR, listed in book.
  • 811-GT, listed in book.
  • 823-GT, listed in book.
  • 831-GT, listed in book.
  • 833-GT, listed in book.
  • 835-GT, 4-function, %, memory, sq rt., VFD. Photo. May 14.
  • 1000, listed in book.
  • 1005-B, listed in book.
  • CP-100, listed in book.
  • SSR-8, listed in book. Photo.

Spiegel (see Argyle)

Starshine (U.S. company)

  • RaceTrack Computer II, listed in book.


  • Memory, 4 function, %, mem, sq rt, 8-digits green VFD, 2- AA rep batt, 78x136x26mm / 3.1x5.4.x1", Japan, "Supplied exclusively to W.H. Smith by Decimo". Photo.

Student (please contact us if you know anything about this company)

  • I, 4 function, sq rt., green VFD, Japan. Photo.
  • IC-802, 4 function, %, red LED, 2- AA rep batt, 2.8x4.75", country of origin unknown. Photo.

Summit (U.S. company.  See the article "Summit: a Man and the Idea" on this site.)

  • E08, listed in book.
  • Ko8, listed in book. Photo.
  • Ko8M, listed in book.
  • Ko9V, listed in book. Featured calculator.
  • K16, listed in book.
  • MB8, listed in book.
  • MCC aka Metric Conversion Calculator, listed in book.
  • MR8, listed in book.
  • SE88M, listed in book. Featured calculator.
  • SI-80, listed in book.
  • SI-90, listed in book.
  • SL-8M, listed in book.
  • SL-8MR, listed in book.
  • SL-10, listed in book.
  • SM-8, listed in book.
  • SM-20, listed in book.
  • SQR16M, listed in book.

Supacal (Manufactured by Advanced Telecommunications Equipment Ltd. (ATE), England, and marketed through Computer Ancillaries Limited. See also Calate.)

  • Calate, 4-functions, red LED,  2- AA rech. batt., 80x142x47mm / 3.1x5.6x1.8", England, has a membrane keypad and uses rotary switches, was also available as a self-assembly kit, similar to Semicomps Calate. Photo. Featured British Calculator .

Super Cal

  • 616, listed in book.

Superlectron (Netherlands company)

  • 8, listed in book.
  • 8GT, listed in book.


  • 105, listed in book.

Syntronix (Sang Young & Co., Ltd., Seoul, Korea)

  • 7C-901, 4-function, %, memory, red LED.



Click to go to :
Calculator Book Addendum A-B
Calculator Book Addendum C-D
Calculator Book Addendum E-I
Calculator Book Addendum J-O
Calculator Book Addendum P-R
Calculator Book Addendum T-Z


Key to Abbreviations

4-funct = 4 basic mathematical functions (addition, subtraction, multiplication, division)
sci-funct = scientific or engineering functions (logarithmic and trigonometric functions such as log, sine, and cosine and usually memory, square, pi, etc.)
mem = memory
% = percent function
exp = exponent
paren = parentheses
pi = pi value
recip = reciprocal
sgn chg = sign change
sq rt = square root
sq funct = square functions (including square and square root)

Battery Type:
button rep batt = very small, disk-shaped, replaceable batteries commonly termed button-types, used mainly in LCD models.
rep batt = replaceable batteries (such as 9V, AA, C, and N batteries)
rep batt pack = replaceable batteries in a removable pack
sealed batt = rechargeable batteries sealed in the case
sealed batt pack = rechargeable batteries in a removable pack

Display Type:
See the section on Calculator Displays for more detailed information.
Displays have 8 digits unless specified otherwise.

COS-LCD = Early Liquid Crystal Display from Sharp showing silver digits on a dark background. COS stands for Crystal on Substrate. This display was used as early as October 1973 but eventually was phased out.
fluor = see VFD.
Gas discharge = Display containing all digits sealed in a single package employing  gas discharge to generate light in the same way as a neon lamp. Normally give amber- or orange-colored digits, and typified by the Panaplex® used by a few calculator manufacturers.
LCD = Liquid Crystal Display, a flat, gray-digit type of display type that uses less power and was embraced by calculator makers by the end of the 1970s. Early versions (used in the early 1970s) by Rockwell and Sharp are included in this guide.
LED = Light Emitting Diode display (usually red although sometimes a purple filter was used to color the display). LEDs often have small half bubble-like covers over the digits. tube or mini-tube = separate vacuum or fluorescent tube for each digit of display.
Yellow LCD = Early LCDs had a reliability problem with ultra-violet light and manufacturers used a yellow-colored filter over the normally gray display to remedy that. Refinements in later LCD designs removed the need for the filter.
VFD = Vacuum Fluorescent Display. Display containing all digits sealed in a single tube generating light from an electrical discharge onto a fluorescent material. The color of the digits is normally green or blue, or somewhere in between.

Other Information:
Klixon keypad = Texas Instruments Klixon® keypad was one of the earliest keypads and used greatly by Bowmar and a few other early calculator makers. It had the four basic functions and used metal key pads about 1/2" square.
Japan (for example) = country of manufacture as stated on calculator
RPN = Reverse Polish Notation, a method of calculating and user data entry used by HP calculators. A few other manufacturers also used RPN in more limited scale.
"aka" (also known as) is used when there is another name or model variation on the calculator.
"c" (for example, c1973) is used as "circa," denoting at approximately that time.


A big thanks to Thomas Brockmeier, Richard Brooks, Andrew Davie, Larry Gilbert, Niels Grot, Palmer Hanson, Steve Haynes, Robert King, Kent King, Jeff Lane, Philippe Leckler, Ken Meine, Bob Patton, James Redin, and CB Wilson for their help.


How to Buy the Book!!!!

Collector's Guide to Pocket Calculators

by Guy Ball and Bruce Flamm

This 204 page, softcover book is the world's most comprehensive listing of electronic pocket calculators from the 1970's, the so-called Golden Age of Pocket Calculators. Over 1,500 known calculators are detailed with information on features, size, display type, power type, and pricing. In addition, when known, the listing also contains date of sales, original pricing, and country of origin information.

The book features over 470 photographs of various models from over 240 manufacturers around the world (including calculators from lesser-known companies in England, Switzerland, Netherlands, Spain, Germany, Bulgaria, and Russia).

"The Collector's Guide to Pocket Calculators" includes a comprehensive value guide to help you gauge rarity and desirability of the various models -- especially as they relate to each other.

The book can be purchased for $23.95 plus $4 for USA first class mailing ($2 for US mailing via slower book rate, $6 for first class mailing to Canada and Mexico, and $8 for airmail to other countries). California residents please add $1.86 state sales tax.


As a special offer, mention this page (newcalc1) and deduct $4 off the price of the book. This offer is only valid if you mention this page. We're trying to see how many people actually read this. If you do, it is a great way to get a great price on a great book!!

Mail to:
Wilson/Barnett Publishing
P.O. Box 345, Tustin, CA 92781-0345, USA
For additional information, contact co-author Guy Ball for additional details and purchase information.


Copyright ©1997 Guy Ball and Bruce Flamm, ©2002-2015 Nigel Tout

1) Mechanical Calculators
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3) Hand-held Calculators
4) Non-Decimal Calculators
5) The Pocket Calculator Race
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10) Puzzle Corner
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12) Calculator Technology
13) Index to the Calculators
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15) Frequently Asked Questions
16) Update Information
17) Vintage Calculator News
18) Bletchley Park
19) About this site
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Photo Library
& Book Addendum

Calculator Photo Library 0-9
Calculator Photo Library A
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Early LCD Photo Library
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Desktop Calculator Photo Library
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Vintage Calculators

© Text & photographs copyright Nigel Tout   2000-2015 except where noted otherwise.