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Wallet 4 of 20 - P.D.U.1., Photographic High Speed Aeroplane, Preliminary Specification, March 1940
Digitised Collection
Maker: Royal Air Force
Wallet 4 of 20 - Paper titled "P.D.U.1. Photographic High Speed Aeroplane. Preliminary Specification." published by the Photographic Development Unit of the Royal Air Force, March 1940.AWM2020.7.1