In all the T206 back discussions I've never seen this question
How many different homogeneous back complete sets can be made. If you exclude the big 3, can complete sets be made of Piedmont 150 Factory 25 backs? Do you have to eliminate the series (150, 350, 350-450) to be able to complete a Piedmont 25 set? How many individual back variations have an example of every card, and how lenient do you have to be of series and factory numbers to make it work?
Last edited by Aquarian Sports Cards; 02-27-2017 at 02:18 PM.
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