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ChuckWould prefer to trade for rarer backs to complete the puzzles.  Condition of back is more important to me than the front. Here's what I need ...
1 or 11. Detroit Tigers ............. Puzzle Complete 
2 or 12. Chuck Klein ............... I need backs A & B 
3 or 13. Frankie Frisch............. I need only back A 
4 or 14. Mickey Cochrane........ I need backs A & D 
5 or 15. Joe Cronin.................. Puzzle Complete
6 or 16. Jimmy Foxx............. I need backs A, B, E & F 
7 or 17. Al Simmons................ I need backs C & D 
8 or 18 Cleveland Indians......... I need backs F, I & K 
9 or 19 Washington Senators...... I need only back B 
Also interested in types, T206 and E120 Tigers.  Here's a link to my dups ...
http://home.comcast.net/~chuckparis/t206dups.html