Posted By:
Hal LewisOK, here we go:
AARON ROBINSON:
1947 - Played for Yankees
1948 - Played for White Sox
1949 - Played for Tigers
Who is he pictured with??
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VERN STEPHENS:
1947 - Played for St. Louis Browns
1948-49 - Played for Boston
Who is he pictured with?
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GEORGE TEBBETTS:
1947 - Started season with Detroit
1947-on - Traded to Boston midway through 1947
Who is he pictured with?
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LARRY JANSEN:
Major League Debut was April 15, 1947
Why would he be included in a 1947 set until AFTER he had done something?
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JOE GORDON:
1946 - Played for NY
1947 - Played for Cleveland
A picture of him with NY from 1946 would likely make this a 1947 set.
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BOB ELLIOTT:
1946 - Played for Pitt
1947 - Played for Boston
A picture of him with Pitt from 1946 would likely make this a 1947 set.
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ED JOOST:
Did NOT PLAY AT ALL in 1946!
1947 - Played with Philadelphia
Certainly he would not have been included in a set printed before the 1947 season.
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SHELDON JONES & BOBBY THOMSON:
They both made their Big League debuts at the VERY END of 1946.
Doubtful that they would they have been included in a pre-season 1947 set.
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NOBODY RETIRED AT THE END OF 1947. 
SO...
If any of you can find some images of these cards with the players, perhaps we can solve this riddle.
AARON ROBINSON would seem to be the KEY CARD... since he switched every year!!