Well that's not true - we had fine copiers back then. Used some process that made the pages slightly sticky and somewhat washed out. We had a guy that was really anal about copying everything. You can imagine his surprise when he found out that all the copies began fading immediately, and were illegible within five years.
No way this was copied on one of the POS copiers we had in the ‘60’s. I didn't see one that was worth a hoot until the ‘73-74 timeframe.
Are you talking about photocopiers or mimeograph machines? Xerox released the model 914 in 1959. It was the first true plain paper copier, but it was very expensive. I haven’t been able to nail down an exact date, but I don’t think security paper came along until the mid 1970’s when photocopying and forging checks became popular. I think what they did here is take a known BC from the 70’s (hence the use of security paper) and add Obamalamadingdong’s information.