US Civil War Belt Buckle. Any information on ways to authenticate

Sword Belt Buckle CDRE Levy

Civil War US Union Equipment Field Belt Buckle - Canada

U.S. Buckles

Original Civil War U.S. Belt Plate and Belt

Civil War - Union Sword Belt Buckle - Brass and Steel

Check out this Funnel Weaver? : r/spiders

US Militia Belt Buckle, Ca 1820s-1840 sold at auction on 12th June

By The Sword, Inc. - US Civil War Belt Buckle Oval - Polished Brass

Confederate buckle. authentication please.