Lot no. 1969D

1866, 10k. brown/blue, two singles with inverted center, tied by cds. "Kursk 18 Dez. 1874" to cover to Warszaw, with adjacent arrival postmark "WARSZAWA 21 Dec.1874". Addressee's name excised and partly covered with white paper, stamps very fine, with additional departure and transit markings on reverse. A phenomenal rarity from Imperial Russia, and unique on cover, Mikulski certificate Provenance: Z. Mikulski (2004)