I got a stack of about 40 of them for nothing from the 60s and 70s. Someone left them on the "give away shelf" at our club and I asked the manager if anyone wanted them. He said to take them, because that is what they were there for and if I didn't , they were going into the garbage. They had been sitting there for about a month or so, so I took them. I gave some of them to guys on here. I still have some.