USA '88 solid brass belt buckle featuring the Olympic Rings. The back is marked Solid Brass, Made in USA, ©1983 BTS. This is the mark of the BTS Solid Brass Specialty Co. of Oakland, California.
This appears to have been a souvenir or money-raiser for the US Olympic teams for the 1988 Seoul, Korea games.
It's about 2 inches by 1 1/2 inches, with a 1 1/4 inch swinging bale.
Very good condition.