This is a vintage, limited-edition set of 6 Los Angeles Dodgers collectors pins in their original glass and wood frame measuring 9" x 7" x 1". I bought this set in 1993 and put it in sealed double bags shortly afterwards until just last month - they look terrific and have never even been displayed. 

The accompanying bronze-colored plaque confirms that this set is from 1993 and is #646 in a limited edition of 1,500. Each pin is a beautifully-designed, multi-color, enamel reproduction of a milestone date or overall Dodgers achievement, starting from the top and going clockwise:

1. 5 World Championships and 9 NL pennants during their first 35 years in LA
2. MLB-record-setting crowd (until then) in the LA Coliseum to honor Roy Campanella [current record was also there]
3. First game against the (then) new Colorado Rockies in Dodger Stadium
4. 8 no-hitters thrown by the Dodgers since their relocation to LA
5. First game against the (then) new Florida Marlins in Dodger Stadium
6. 12 Rookies of the Year (MLB record to 1993) in Brooklyn and LA 

The frame has a stand arm, so that this set can be displayed standing on a piece of furniture, or hung on a wall.

It's time for Dodgers baseball!