This is a U.S. plate with an old tag glued on the back that reads "picked up on battlefield, first battle of Bull Run". "On July 21, 1861, Union and Confederate armies clashed near Manassas
Custom Military Belt Buckles Custom Navy Belt Buckles - U.S. DOD Coins
Officers leather garrison belt w/ brass US buckle
Original Civil War Belts & Belt Buckles for sale
Fascinating Confederate and Union Buckles on Display at Shiloh Civil War Museum - newsite
Buckles & Plates Civil War Artifacts - For Sale in Gettysburg
The History Behind Today's Custom Belt Buckles - A Cut Above Buckles
Belts & Buckles - Midwest Civil War Relics
Great Indian Wars Model 1874 US Army EM Belt & Buckle: Flying Tiger Antiques Online Store
Union Buckles and Plates - Army of Tennessee Relics Confederate Belt Buckles, Artillery, Buttons, all Authentic Civil War Relics
M. 1872-1902 US Buckle-3208