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Rockwell

Rockwell International is a U.S. company.

Models known to have been manufactured in Britain :-

Rockwell bought the British calculator manufacturer Sumlock Anita Electronics Ltd. and the distributor Sumlock Comptometer in 1973. The name of the distributor was changed to Sumlock Anita Ltd.
The Rockwell models were manufactured at the Sumlock Anita Electronics factory at Portsmouth, Hampshire.

The Rockwell Answer range of calculators (from Management in Action, December 1974) -
"Rockwell International, ...   ..., is entering the British domestic market with a range of five calculators from a pocket model to advanced machines for engineers and scientists. ...
The machines are named Answers. ...   ... For example, the tiny Answer 51R is a general-purpose calculator and an automatic converter from British to metric measurements, holiday currency conversions and sums involving fractions. ...   ... The price is £55.95 including VAT.
Answers will be manufactured at the Portsmouth, Hants, factory of Sumlock Anita Ltd, the British subsidiary of Rockwell. ..."

The logo "Answer" was marked on the box but not on the calculator.
 

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