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80-column card
Scientific American 1902-04-19
Photo sizes
S - small
(297 x 432)
M - medium
(409 x 594)
L - large
(521 x 756)
XL - extra large
(632 x 918)
Original
(650 x 943)
slideshow
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Information
Created on
Monday 15 March 2010
Visits
820
Tags
80-column card
,
business machine
,
card processing
,
IBM card
,
statistics
Albums
General Magazines
/
Science and Technology Magazines
/
Scientific American
Census-taking by machinery. Hollerith card-puncher. Population-card punch. Tabulating and adding machine.
Source: Steve Kirch, collector, and creator of a great
website about SCIENTIFIC AMERICAN
in the past
Restoration by: magscanner
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