G_ary

http://imgur.com/yY8KZIa Its between 1/2oz-1 oz (closer to 1 oz, i can weigh it tonight). I got it probably 15 years ago at a coin shop in LA. I was young so i don't remember what the price was, or what it was labeled as. I would love some more information on it, but my goggling attempts have got me nowhere. It came in a terrible blue display case with no identification of any type. I assumed i could find something right away because it is not some generic coin. It has a fairly specific message on the obverse and reverse. That has not been the case. I would also assume it at least has to do with TIME magazine declaring him the man of the decade in 1990. That has still lead me no where though.