Keywords: Stammesschule Gruppenfoto.png en Group of Students of Mekteb-i AÅŸiret-i Humayun Imperial Tribal School which was an Istanbul school founded in 1892 by Abdulhamid II to promote the integration of tribes into the Ottoman empire through education Abdullah Frères ” Viçen 1820-1902 Hovsep 1830-1908 and Kevork Abdullah 1839-1918 three armenian brothers who ran a commercial studio in Constantinople with branches in Cairo and Alexandria In 1862 named official photographers to the court of Sultans Abdul Aziz and Abdul Hamid II they were commissioned to document the Ottoman Empire LOC-image cph 3b28782 Creator Abdullah frères or 1892 1893 Stammesschule Gruppenfoto jpg PD-old-80 Mekteb-i AÅŸiret-i Humayun Abdullah frères Ottoman Empire LoC |