Image:IBM1620A.jpg
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IBM 1620 Model I Level A (prototype)
A photograph from original IBM announcement of the 1620.
Downloaded (and renamed and reduced) from
I have permission from Ed Thelen to use photos from his site.
A THIRD SURVEY OF DOMESTIC ELECTRONIC DIGITAL COMPUTING SYSTEMS Martin H. Weik Department of the Army Project No. 5803-06-002 Ordnance Management Structure Code No. 5010.11.812 BALLISTIC RESEARCH LABORATORIES - ABERDEEN PROVING GROUND, MARYLAND
This work is in the public domain because it is a work of the United States Federal Government. This applies worldwide. See Copyright.
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