1966 Topps compaired to 1966 OPC
I know the 66 Topps have 2 different types of card stock. One has a white back and the other has a darker more vintage look.
I do not have any 1966 OPC to compare card stock to the 66 Topps.
Does anyone know if the card stock of the OPC cards are the same or different than the Topps cards? Thank you for any help!
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