50th Auction Anniversary Auction - Day 8

Russland: 1883-88, 2 k. light green (1888 issue) with GROUNDWORK INVERTED, used and cancelled with S
1883-88, 2 k. light green (1888 issue) with GROUNDWORK INVERTED, used and cancelled with St. Petersburg 7. Sept. 1888 c.d.s., superb. UNIQUE VARIETY ON THE 2 k. light green, and one of the rarest stamp of Russian Empire. (Sc. 32 d; Mikulski certificate.).