Details For Cover ID# 28261

Blood's Penny Post (1c) black (#15L18) tied by smudged oval cancel, 3c dull red type III (#26) tied by "Philadelphia Pa. Aug 1 1859" octagon datestamp, to-the-mails orange cover to New York City, with "Blood's Despatch Aug 1, 9. P.M. 1859" circular datestamp. Addressed to "Miss Lizzie A. Edelman, care of George W. Endelman Esq., U.S. assay office , New-York". 1859 docketing.

The U.S. Assay Office in Manhattan (established 1854) was where gold and silver were melted, assayed and cast into bars before being shipped to the U.S. Federal mint in Philadelphia to be converted into coins. For an invention by George W. Endelman, a mechanical multiplier to determine value of any amount of Federal currency from $1 to $100,000 in British Sterling, filed 1856, see link: www.loc.gov/item/rbpe.1220100a/ (Library of Congess website).