The Signatures on US Currency: A Visual History of How Treasury Secretary and Register Autographs Changed from Handwritten to Engraved
The signatures appearing on United States paper money tell a surprisingly rich story about the evolution of American currency production, from hand-signed notes of the 1860s to the precision-engraved facsimiles of today. Understanding signature combinations, their dates of use, and their relative scarcity is one of the most rewarding areas of study for serious currency collectors.
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