Essay postage.Ri.12.10.1856.Series "Preparations for the release of the first Russian postage stamps."The head of Mercury.10 kop...

Essay postage.Ri.12.10.1856.Series "Preparations for the release of the first Russian postage stamps."The head of Mercury.10 kopecks.CMS-GK No. GKNR15 (handwritten text, on the back of the pencil "Essei D Enveloppe 1854 Kepler" and "8029", without teeth, without glue).Author: Kirkhner A.V.?, Reichel J. Subtle Paper (smooth, white), printing printing (light blue and gray-black).36.5x36.5;D 28.8.- -.-Horizontal windows GKP-37928..Electronic copy source: PB