Black and white photographic print annotated on the reverse: "One of the 6 Ferranti, Bracknell, manufactured Stage 1 Prototype Oscillogyros Part No BEX/64/1439, S.No 003, prior to delivery in 1971 under Contract KM/3C/2371/CB21D."

Details

Identifier:
2022-235/8/8
Access:
Open access.

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