The number "771" in black ink appears on recto in what may be the hand of Antoin Sevruguin and has been cross out in black ink.
Publications
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.Sm.76. Titled: "Tus (Iran): Haruniya Mausoleum". On recto, scratched handwritten number (inked, probably by Antoin Sevruguin) reads, "711”. On recto of the print, faded handwritten number (inked, probably by Antoin Sevruguin) reads, "267."
The image is reproduced on page 92 of Volume III of “Du Khorassan au pays des Backhtiaris: trois mois de voyage en Perse” by Henry-Rene D’Allemagne published in 1911 by Hachette, Paris, France. The image is titled "Le Naghara-Khaneh, a Tus (environs de Mesched)".