Los-Nr. 1540

1866, 1 k. black/yellow on horizontally laid paper, tied by cds. “ST PETERSBURG 30 JULY 1881” to registered postal stationery envelope 20 kopek blue to London used with a further cds. strike, alongside framed “ZAKAZNOE” and red oval “REGISTERED 15 AU 81 LONDON”, correct 21 kopek tariff, back flap missing, still fine and scarce