Collection of U.S. Olympic Festival 90 pin badges

These pins are from the 1990 U.S. Olympic Festival, which was held in Minneapolis, Minnesota. 

The collection features various sports, including wrestling, swimming, shooting, water polo, equestrian, and cycling.

Olympic pin collecting and trading is often referred to as the "unofficial sport" of the Olympic Games. 

The value of such pins can vary widely depending on their rarity and condition. 

These specific "Rainbow" branded pins were likely produced by a specific manufacturer for the event.

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