Photo: 22.5 x 16.5 cm, cardboard: 29.7 x 23.7 cm.
The photo is glued to cardboard.
From the album "Persian Kinds and Types" of Colonel E.A. Makovkin. It is an exceptionally rare historical photograph associated with Russian influence in the Middle East in the late 19th and early 20th centuries.
The Persian Cossack Brigade (1879-1920, after 1916 - a division) is a unique military unit created in Persis based on the model of the Russian Cossack units.