NATIONAL PHYSICAL LABORATORY: SCIENCE AND TECHNOLOGY IN WARTIME, TEDDINGTON, MIDDLESEX, ENGLAND, UK, 1944 - In the Ship Research Department at the National Physical Laboratory, technicians fit a small driving motor and transmission gear to a model ship which is about to undergo a self-propulsion test in the test tank
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Photo credit: © piemags/ww2archive / Alamy / Afripics
License: Licensed
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