2 different sets for 1952 : a "large" (cards measure 2 1/2" by 3 3/4") and a "small" one which measures around 2" by 3". Checklists are identical for all cards.
2 different sets for 1952 : a "large" (cards measure 2 1/2" by 3 3/4") and a "small" one which measures around 2" by 3". Checklists are identical for all cards.