1866, Coat of Arms 1 kopek black/yellow on vertically laid paper, two singles, with 3 kopek black/green on horizontally paid paper, all of fresh colours, making up the correct 5 kopek rate and tied by cds “REVEL 12 FEV. 1872” to official postal formula card to Moscow, adjacent railway travelling post office “39-40” and arrival cds “MOSCOW 14 FEVR. 1872”, fine. Rare early use of the newly introduced formula cards
