Circa 1839 to 1874 Period Excavated Relic "US Belt Buckle" stamped front marked found at "Fort Union" New Mexico !
See the Fort History between 1851 to 1862 in second last photo.
Measures 3 1/2 inches Long, and 2 1/4 inches Wide. All fractures indicate that this Buckle was in an upward facing position when it was crushed downwards and expelled it's lead filled back.
Digger found with Metal Detector and marked the back of the plate with the following statement : "Fort Union, N. Mex. Found with metal locator "
Description : Double edge border, and size for a Model 1855 Belt Buckle. Heavily Aged Patina on the Unpolished Front & Traces of oxidized white lead on back, as it should be. Comes complete inside the glass front Ryker Display Box which is 5 1/2 by 4 1/2 inch by 7/8 inch.
Actual Measurements now are 3.50 by 2.25 inches. Don't forget it's slightly larger now since it's been fractured and compressed close to flat.
Most Buckles versions from 1839 to 1874 are from 3.30 to 3.44 inches Long.
See Ref. Book : "Plates & Buckles of the American Military 1795 - 1874"
By : Kersis
Pages : 26 through 38