When I posted pictures of the IBM print charts I had found, Kevin Adler sent me pictures of some of the RPG history he has, RPG coding sheets.
Looking closely at them I think they may have been sheets used in the days of punch cards.
When I asked Kevin how he came to possess them he replied: "I got them from a former team leader before he retired."
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If you have any RPG or IBM midrange memorabilia you would like to share send me a message via the Contact Form, on the right.