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Seen a fair few of those, i often wonder how many actually were merlin pistons and how many were meteor pistonsSorry, cocked that right up. Photo's are of an ashtray made from the crown of a Rolls Royce Merlin piston. Approx 5" in diameter.
Some were smoking roll your owns etc ( LindisFarne)View attachment 239808 View attachment 239811 View attachment 239812 View attachment 239813 Today I am making a big ol diesel piston in to a cool ashtray. I still got some polishing to do but slowly getting there.