Pinkey's Express Post, New York, 2c black on green glazed paper, on folded letter internally dated July 9, 1851, and noted "Fourth Avenue, 94 / Opposite 11th St", postmarked "New-York 5 Cts/ Jul / 10", to Boston, Massachusetts, stamp with portion torn off at left and otherwise creased, some peripheral discoloration to cover, yet a rarity, this being the discovery cover, one of only handful of such stamps believed extant; ex-Ferrary, Boker, signed Jakubek.