The installation of the four Siddeley Puma engines in the fuselage of the Bristol Tramp, looking aft, Stock Photo, Picture And Rights Managed Image. Pic. MEV-10847330 | agefotostock
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October | 2015 | Old Machine Press
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File:Siddeley Puma 250 hp L'Année Aéronautique 1920-1921.jpg - Wikimedia Commons
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Reid Gas Engine Co Siddeley Puma 240 B.H.P. 1917 Instruction Handbook — Essco Aircraft
Siddeley 'Puma' 230 hp WWI aero engine - MAAS Collection