10 k. imperforate, horizontal strips of four and three, tied by cds “MARIUPOL 20 6 19” to reverse of registered envelope to Rostov on Don, framed registration cachet and arrival cds “ROSTOV 22 6 19”, the envelope roughly opened at left, of no importance, very fine. A scarce mailing at the 70 kopek rate (1st weight step 35 k. plus registration 35 k.)
