From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Photograph of a disassembled large-caliber automatic weapon or cannon, showing the barrel, breech, and firing mechanism components.
| Identifier | ExFiles\Box 176\1\ img224 | |
| Date | 19th May 1942 guessed | |
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