cover 1919 (8 May) registered envelope from Tallinn to Parnu bearing "Eesti Post" overprint on Russian Arms imperf. 1k. (2) and 3k. (faint overprint) and General issue 1918 perf. 11½ 15k. (scarce) cancelled by double ring d.s. and showing arrival c.d.s. (9.V.19) on reverse. A very rare franking