Chl.E. Sokolov (Soloviev).About the silver coin of the Golden Horde.Signed: Kazan.

Chl.E. Sokolov (Soloviev).About the silver coin of the Golden Horde.Signed: Kazan.- 1876. -[1893-94] Agreement No. 24 of 02/12/2016 category 37 of the manuscript of the works of members of the Russian Geographical Society and separate documents in the Simbirsk province, case 25..Electronic copy source: PB