1875, 2 k. black/red and 1884 2 k. olive green, together with additional franking paying the correct 14 kopek rate and tied by cds “ST PETERSBURG 27 APR. 1884” to reverse of registered envelope to Braunschweig, red framed registration mark “R St. Pétersbourg Russie.” and reverse arrival cds “BRAUNSCHWEIG 11 5”, minor imperfections of no importance, still fine. A rare mixed franking of the same facial value from two different issues, enhanced by the very early usage of the 2 kopek olive green
