5k. and 15k. on 1k., 25k. on 7k. 50k. on 1r. and 1r. on 3k. perf 12½, all with inverted surcharge, unused, 5k. on 1k. tiny toned spots, otherwise fine, each with certificate Dr. Leupold (2017)

1926/31, 5k. on 100r. (1), 10k. on 3k. (1) and 10. on 250r. (two horizontal pairs) tied on reverse of an assembly of four different covers to Germany, France, Italy and Sweden, franked on front with a selection of Soviet Definitives or commemoratives; very fine (Mi.-Nr. 7, 15, 16)