IBM System/3 Punch Cards
||Bottom left edge of each card
each card: 2 5/8 in x 3 1/4 in x 1/8 in; overall: 2 5/8 in x 3 1/4 in x 4 1/2 in
This object is a collection of several hundred individual punch cards. All have been punched. They are 96 column, 3 tier cards.
Gift of Museum of American Heritage