cover 1921 (6 Dec.) registered envelope from Vladivostok to Finland bearing "D.V.R." overprint on Russia Arms 25k. in combination with Priamur Govt. 1921 (Mar.) Vladivostok issue 5k. tied by double ring d.s., showing two different registration labels and, on reverse, Helsingfors arrival c.d.s. Fine and a rare mixed issue franking. Photo