Essay postage.RSFSR.1920?.Star against the background of the gear.20 rubles.CMS-GK No. GKN18 (olive-gray, purple stamp "Gos.k." ...

Essay postage.RSFSR.1920?.Star against the background of the gear.20 rubles.CMS-GK No. GKN18 (olive-gray, purple stamp "Gos.k." on the back of 15 copies, part of the sheet. 13 m. And 2 units).Author: The author is unknown.The paper is simple (with glue), lithographic printing.16x25.- -.-Frames "Provisional Government.RSFSR »GKP-32259/1..Electronic copy source: PB