Fancy Buffalo Steam-Boat Postmarks, 1830-1851. 21 covers, most stampless, and all bearing strikes in red or blue of the fancy "Steam-Boat" in scroll, as well as various types of the double oval "Buffalo", some with additional "Free" handstamp or rate marking; several are franked with imperf 3¢; attractive lot. Estimate  $300 - 400. $0 (Image)