this is the only info that came with the prop(attached pic) from a search on google it seems cowley would have repaired spitfires etc .
hi thanks for the interest/help. the only other numbers i can find are d 17 and bc 508
thanks for the reply . i bought this prop from an antique warehouse and was told it was from a spitfire , but i’m not sure .
i was told this was from a spitfire ,but not sure .