Since the end of the 19th Century, official events of Jogjakarta Sultanate were immortalized in photographs and stored in the Royal archives.
Usually, all of these photographs are stamped with the Praja Cihna ,the Kingdom’s Royal Coat of Arms.
This particular photograph was taken by R.B. Prawiro Kaswardjo on 9th of June 1939 as a documentation of an official visit from the high ranking Dutch East Indies officials to Sultan Hamengkoe Boewono VIII. One of them was Johannes Abram Idenburg. He was the son of the former Dutch East Indies Governor General, Alexander Willem Frederik Idenburg. For similar photograph see : KITLV Digital Media Library (n.d.). Bezoek van P.J.A. Idenburg, directeur van het Departement van Onderwijs en Eerededienst aan sultan Hamengkoe Boewono VIII in de kraton van Jogjakarta. Retrieved from http://media-kitlv.nl/all-media/indeling/detail/form/advanced/start/2?q_searchfield=idenburg