This is the Oil filler cap cork seal.4.5 Liter Silver Dawn up to current models 1946-1955 Silver Dawn & Silver Wraith, Bentley Mk-6, R-type 1956-1965 Rolls-Royce Silver Cloud I, II, III & Bentley...

This is the gasket between the pedestal for the oil pick-up in the sump and the side of the crankcase for all V8 engine models.  Supersessions:  UE73619, 07V103239, UE5204 1959 onward V8 engine...