Punch Card Collectables 
96 column card gauge. Same concept and purpose as the 80 column gauge but for the S/3 cards.
96 column card gauge. Same concept and purpose as the 80 column gauge but for the S/3 cards.

80 column card gauge. Punched cards were placed on gauge to determine if holes were in the right place.
80 column card gauge. Punched cards were placed on gauge to determine if holes were in the right place.

80 column card. Notch at right end of card meant it had been verified as being punched from source documents correctly..
80 column card. Notch at right end of card meant it had been verified as being punched from source documents correctly..

IBM Port_a_Punch. Stylus used to remove a pre-scored punch. Florida's dangling chads are nothing new!
IBM Port_a_Punch. Stylus used to remove a pre-scored punch. Florida's dangling chads are nothing new!

PortaPunch card from Swedish hospital.
PortaPunch card from Swedish hospital.

IBM card that could contain a 35mm film frame.
IBM card that could contain a 35mm film frame.

Remember, the printing on cards was for humans. The hardware read the holes!
Remember, the printing on cards was for humans. The hardware read the holes!

Pack of special cards used to make the program drum card for keypunch machines. Regular IBM cards could be used but these have a coating that stood up to the wear and tear of the star wheels.
Pack of special cards used to make the program drum card for keypunch machines. Regular IBM cards could be used but these have a coating that stood up to the wear and tear of the star wheels.

Card for early UNIVAC unit record machines using round holes. I believe later they saw the light and used rectangular holes.
Card for early UNIVAC unit record machines using round holes. I believe later they saw the light and used rectangular holes.

gas payment card
gas payment card

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