I found mine. Im sure mine is no older than the 70s, most likely 80s but could even possibly have been manufactured later I have a cool wooden nickle souvenir from a tourist attraction from the early 60s but it looks much different. Everything has value and I will sell but Im afraid its only worth what someone is willing to pay and thats not much im afraid..
As Nitric said, more like a coupon. I think mine was good for a free drink or something.