Essay postage.RSFSR.1920?.The letters "RSFSR" in Oval.5 (rub.).TsMS-GK No. GKN17 (Orange, purple stamp "Gos.k." on the back of 4...

Essay postage.RSFSR.1920?.The letters "RSFSR" in Oval.5 (rub.).TsMS-GK No. GKN17 (Orange, purple stamp "Gos.k." on the back of 45 copies, parts of the sheet- 2 to 15 m.; 13 m.i 2 units).Author: The author is unknown.The paper is simple (with glue), lithographic printing.19.5x28.- -.-Frames "Provisional Government.RSFSR »GKP-32255/1..Electronic copy source: PB