Nice 1972 vintage coin

Please take a closer look at this coin. This coin is not circulated, but it does have some imperfections. I want to highlight the back of the coin; the dark spot you see is some type of glue. Yes, this coin was glued to a plaque board, which I have included a picture of. .[[I will be posting all of them some of them have no glue some do.]]] I have only one available