IBM Type 015 Motor Drive Key Punch
Photo: IBM Archives, Machine Files, used by permission.
Click image to enlarge
This is like the
Type 016
Motor-Driven Electric Duplicating Key Punch but without the duplicating
feature; the two were released simultaneously in the 1927-29 timeframe.
The photo at left is
from
Wikipedia;
caption: "New Orleans, 1938. New Orleans Hydrographic Office. 'WPA white
collar workers making punch cards of the hydrographic chart for use
eventually in revising pilot charts. A good operator can turn out 1,500
punch cards daily, as compared with some 300 if computed by hand. Both
methods are used on the New Orleans project. Interior.' The keypunch
machines are the IBM Type 016 Electric Duplicating Key Punch introduced in
1929." As of 6 March 2023, the Wikipedia page misidentifies it as an 016.
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