"I feel confident in saying it was fairly contemporary, no earlier than the 1980s. "

That same sub: "This book was pretty old, like, it must have been printed before 2010".

You know, a few years ago I really got into it with somebody who, among other things, took issue to my suggesting "an old book" was not enough detail and she really should tell us when she read it and when she thinks it's from. "Everybody knows what old means!"

Yeah, well, apparently everybody does not know that at all.