These are original 5/8" old Union Pacific uniform buttons

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Antique Union Pacific Button Railroad Uniform Button Antique

Antique Union Pacific Button Railroad Uniform Button Antique

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These are original 5/8" old Union Pacific conductor uniform brass buttons acquired out of the estate of a Nebraska passenger train service employee and marked S.A. French New York. - Antique Mystique

US Uniform Buttons : : Inkspot Antiques and Collectibles, An eclectic assortment of antiques and collectibles

Uniform buttons researchers and collectors