RAF WW1 Propellor Hub from Light Bomber
WW1 but pre- RAF , Wooden propeller hub is from a British Reconnaissance/Light Bomber aircraft known as the R.E.8.
The R.E. stood for 'Reconnaissance Experimental'. They were first built in 1916 and started to appear on the Western Front at the end of 1916. They were mainly flown by The Royal Flying Corps before the Royal Air Force was formed in 1918. In this case the letters R.A.F. on your hub stand for 'Royal Aircraft Factory' where they were made.
The letters 12 CYL on the hub refer to the V12 Cylinder engine.
The R.E.8's were retired in 1918
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