Lot 571
1881, 1¢ gray blue, re-engraved, single on three illustrated ad covers; includes Continental Nurseries, W. Philadelphia Pa. all-over black and green illustrated design showing Eagle and map of U.S., Roller Skates, Kitselman Bros., illustrated ad showing roller skate (Ridgeville, Pa. cds) and E.E. Brewster's Safety Rein Holder illustrated design showing horse drawn carriage (1¢ unsealed circular rate to Westminster Center Mass., with 1989 P.F. certificate), F.-V.F. and attractive.Scott No. 206 Estimate $200 - 300.