Wrigley Exhibits backs
 

I know these were produced in 1961, but they feature pre-war players, so hopefully its ok I'm posting here. Ive seen these Wrigley Exhibits with plain backs and a post card back (see photo). Were there 2 different ones produced? Ive seen cards with both backs graded, so I'm assuming one isn't a reprint. Anyone have any information?https://uploads.tapatalk-cdn.com/202...9411359ba5.jpg

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I got nothin' except a write-up on Old Cardboard says, "The postcard back seems to be a little more common...".

They were issued with both backs. No worries

That's interesting. I remember reading that the postcard back was harder to find, but I don't remember where that was. I have sets of plain backs and postcard backs, and the postcard backs definitely took longer to complete.

I found the PC backs tougher when I was assembling the set years ago, but haven't really checked since.

It might have been your Exhibit Card book where I read the PC backs were harder to find.