Category

• Philately (186)
• Picture Postcards (4)
• Advertising, Promotion & Propaganda (2)
• Documents (2)

Country

• Turkey & Ottoman Empire / Türkiye & Osmanlı İmparatorluğu (194)

Attribute

• Philately (Postal History) (190)
• Philately (Postal Stationery) (44)
• Philately (Stamps) (44)
• Philately (Stamps - Local Issues) (29)
• Picture Postcards (publishers, photographers, printers) (22)
• Philately (Other Stamps) (4)
• Documents (2)

Historical

• 1299-1918 Ottoman Empire (194)

Geographical

• Vilayet of Constantinople (63)
• Vilayet of Aidin (40)
• Region of Aegean Sea (26)
• Vilayet of Trebizonde / Πόντος (18)
• Vilayet of Adana (17)
• Vilayet of Andrinople (Thrace / Θράκη) (17)
• Region of Marmara (15)
• Vilayet of Salonica (14)
• Region of Black Sea / Πόντος (13)
• Region of Mediterranean Sea (12)
• Vilayet of Beirut (9)
• Vilayet of the Archipelago / Aegean Islands / Νησιά Αιγαίου (9)
• Region of Central Anatolia (3)
• Vilayet of Syria (3)
• Vilayet of Bursa (Hüdavendigâr) (2)
• Vilayet of Konya (2)
• Vilayet of Monastir (2)
• Region of Eastern Anatolia (1)
• Samos (Principality) (1)
• Vilayet of Aleppo (1)
• Vilayet of Baghdad (1)
• Vilayet of Erzurum / Armenia (1)
• Vilayet of Hejaz (1)
• Vilayet of Janina (1)
• Vilayet of Kastamonu / Πόντος (1)
• Vilayet of Kosovo (1)

Topic

• Hellenism (44)
• Ships & Boats (35)
• Military & War (21)
• Trains & Railway (8)
• Religion, Churches (6)
• Medicine (3)
• Rivers ( Falls etc ) (3)
• Royalty (3)
• Bridges (2)
• Education & Schools (1)
• Fauna (other) (1)
• Judaica (1)
• Olympics & Sports (1)

Kind of Item(s)

• Postal Items (194)
• Postcard (57)
• Envelope (Commercial or Private) (33)
• Postal Stationery (33)
• Loose Stamp(s) (25)
• Entire Folded Letter (19)
• Corner Cover (Printed or Illustrated) (13)
• Fragment (12)
• Cover of Folded Letter (9)
• Post's Document (7)
• Front or back only (3)
• Money Order (3)
• Wrapper (3)
• Postal cards (2)
• Letter Card (1)
• Newspapers & Gazettes (1)
• Telegram (1)