cover 1c Blue type II (7), clear to large margins, minor natural printing flaw (albino impression of a thread which has subsequently fallen off), used with 3c Brownish Carmine (11), clear to large margins, both tied by "Philadelphia, Pa. May 10" c.d.s. cancels on very fresh small pale buff cover to Bangor, Me., the 1c stamp paid a 1c carrier fee, very fine and exceptionally choice photo