SOCHI: 1918, "60" small overprint on 1 k. perf., unused, 1 k. imperf., used, together with "60" large overprint on 1 k. imperf, unused, the later small thin, otherwise very fine, all sign. and certificates Ceresa (2014) (Geyfman 1-2)

1918, "60" large overprint on 1 k. and 3 k. imperforated, fresh colours, all four large even margins, unused, very fine, sign. and certificate Ceresa (2014) (Geyfman 1, 3)

1918, "60" small overprint on 1 k. perforated, Type 3, upper sheet margin, fresh colours, lightly tied by cds. showing "29 12 18" (very likely ADLER CHERNOM.) to small telegram form to the administration of the agricultural cooperative in Sochi, reverse arrival cds. "SOCHI CHERNOM 2- 1 18 a" (slipped digit for year 1919), very fine. A delightful item of great rarity, with a similar cover from the same correspondence illustrated in Geyfman, sign. and certificate Ceresa (2014) (Geyfman 2)

1918, "60" small overprint on 3 k. imperforated, scarcer type 7 (2,8 mm width), fresh colours, four very good even margins, tied by unclear cds. to small piece, very fine, sign. and certificate Ceresa (2014) (Geyfman 3)

1920, "5" overprint on postal saving 5 k., revalued at 5 roubles, horizontal pair, used with cds. "SOCHI", very fine. Extremely rare, illustrated in Geyfman, sign. and certificate Ceresa (2014) (Geyfman 4)