late 60's early 70's Reds keychains

redlegs

Does anyone know how many years that the Cincinnati Reds produced player keychains? I have two differnent ones for Johnny Bench from what I believe is 1969 and 1970. A picture of the 1969 is attached below. I had one for Pete Rose that I sold for several hundred dollars a few years ago.

Thanks



1969 Johnny Bench keychain