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International Business Machines IBM on a punch card

A rare stock certificate printed on punch card. International Business Machines IBM. A punch card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions. These were formerly used to program old mainframe computers. Unissued, unconcealed, in mint condition.

International Business Machines IBM on a punch card IBM-card-001Regular price: $119.99Sale price: $99.99

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