Late '52. Like the Henry J, the early '52s used left over '51 bodies which would have not had the tail lights on the fins. Factory bulletin 323 states that the trunk lid is still optional on the '52 Corsair and Corsair Deluxe models but I have seen very few, if any, late '52 - '54 Js without a trunk lid. The late '52 Allstates without a trunk lid are much more common.