This is a newish collection, but one I'm really into! When I buy jewelry I usually stick to brooches, and so I always look through old pinback buttons when I see them. The first one of these I picked up was the "So's Your Old Man" one. When I've tried researching them all I can really find is that they are from the 40's. The big buttons aren't as old, but I like that they are in the same style, and are weird.