cover 12c Green (117), used with 3c Green (147) on registered cover to Italy, both tied by neat cork cancels, 'Registered/Apr 20 1878/New York, N.Y.' h.s., private label from Wm. P. Brown Books, Coins, Stamps and Curiosities of Nassau Street, receiving backstamps, some slight soiling, otherwise fine and atractive mixed usagephoto est.