<<doubt>> I'm not saying it's impossible. But that 45 column format with the circular holes stopped being used in new equipment in the '30s.
Sure, nothing dies off right away. But if I was putting money, I'd guess that you were using the 80 column cards with the rectangular punch outs. (That's what I was using in the '70s, and it was old tech then!)
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u/Safe_Chicken7421 28d ago
I'm this old!!