Aaron Burr, free frank signature on ca. 1790 folded letter sheet to New York City, with "17/Ma" Bishop mark and matching straight line "Free" handstamp, Very Fine and choice, signature as U.S. Senator from New York. Estimate  $500 - 750. On July 12, 1804, Aaron Burr and Alexander Hamilton dueled in New York City. Hamilton later died of the gunshot wound that he sustained during duel. $0 (Image)