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Larry Blanchard
 
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In article , says...
No one, well almost no one, uses 72-80 until they do 5A. when you
punched your own every 'saved' stroke helped.


No, no. Column 80 was reserved for the "C" you punched before you
turned the card around. That, and using a different color stripe for
each revision, allowed you to backtrack :-).

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Homo sapiens is a goal, not a description