G. BRONSON / CAST STEEL on an 1840 Braided Hair large cent. Brunk-Unlisted, Rulau-Unlisted. Host coin Very Fine.Some limited research has determined that this is the stamp of George Bronson, who was a machinist working in Fishkill, NY in the 1850s & 1860s. A very nice counterstamp with well impressed letters.From the Steve Tompkins Collection. Earlier ex Stack’s Bowers Galleries sale of the John J. Ford, Jr. Collection, August 2013, lot 21683. Paper envelopes with attribution and pedigree notation included.