The number 824 in white appears on recto. The photograph is titled "Mosque in Rasht" on verso, in what may be Antoin Sevruguin's hand.
A variant of this image is in the Myron Bement Smith Collection: Antoin Sevruguin Photographs. Freer Gallery of Art and Arthur M. Sackler Gallery Archives. Smithsonian Institution, Washington D.C. Gift of Katherine Dennis Smith, 1973-1985. Museum number: FSA A.4 2.12.GN.60.01.
Titled "Mosque in Rasht" on a halftone print in a 1926 catalogue.