American “DUI”, "DI" Pins or unit Pins

These small enamel pins are a fun an inexpensive area to collect in most cases. These were worn on non combat uniforms on the lapel. They show the unique coat of arms for the regiment or unit they served in. There are hundreds of different ones available to collect. Originally authorized in 1920, they are still used today, so the more modern ones are only a few dollars. WW2 and older command higher prices depending on rarity.