Title
Test punched cards
Catalog Number
102687860
Type
Document
Description
Two punched cards: 1 for IBM 603 Electronic Multiplier and 1 for accounting purposes. Accouting punched card has writing on the back.
Date
1948-08-20
Publisher
International Business Machines Corporation (IBM)
Category
I/O/punched card
Collection Title
Rey Johnson papers
Series Title
Inventions and Projects
Credit
Gift of David R. Johnson