Mark of the St. Petersburg public telegraph.Ri.05/22/1866.Mark of the St. Petersburg City Public Telegraph.20 kopecks.Iver No. 1...

Mark of the St. Petersburg public telegraph.Ri.05/22/1866.Mark of the St. Petersburg City Public Telegraph.20 kopecks.Iver No. 1 (red "PS" on the back, in the lower right corner).Gash.The paper is dense (without V.Z.), printing printing (color).27.5x27.5.- -.-GKP-37977..Electronic copy source: PB