The number "542" in white ink appears on recto in what may be the hand of Antoin Sevruguin.
This photograph forms part of a group that is believed to have belonged to Earl Thomas Crain (1907-1989), an American foreign service officer who was stationed in Iran from 1935. The group of photographs are believed to have been originally acquired by the father of Crain’s wife, Elizabeth Agnes Hildebrand, who was an honorary council for Switzerland in Iran after the first world war.
The Nelson collection has another gelatin silver print of this image which also has the number "542" in white ink on recto in the same location.
This image appears on page 39 of "Sevruguin's Iran" published by Barjesteh van Waalwijk van Doorn & Co's Uitgeversmaatschappij in Rotterdam and Zaman Publishers in Tehran. The print is titled" "A Dervish".