[1] There were 25 founding members who mainly collected Egypt and Sudan but the membership soon expanded and the association came to focus mainly on the Ottoman Empire and surrounding areas.

[2] In the late 1970s, membership fell to less than 100 but the association was reinvigorated following a meeting at the London 1980 International Stamp Exhibition after which a new committee was appointed and a new constitution adopted.

[2] In 2000, with the Holyland Philatelic Society, the association published a history of the Ottoman field post offices in Palestine from 1914 to 1918 based on the collection of Alexander Koleksiyonu.

The book was edited by Kemal Giray and Jeff Ertughrul with a parallel Turkish and English text.

[4] Notable members include Mehmet Başaran, Kemal Giray, Rainer Fuchs, Otto Hornung and the late Jeff Ertughrul.