[wake.up.the.echoes]

Does anyone have their set of 1947 Brooklyn Dodgers Team Issue photos handy and not graded? I’m trying to determine if the ones I have are real or not. The ones I have are in really nice condition, but they are on a stock I am not familiar with. The older sets I’ve seen are either on thinner stock, or something that resembles modern construction paper (like kids use in school). My photos are thicker, almost like a modern oak tag, for lack of a better description. Anyone have any thoughts or opinions? Thanks. Alan