Oriental Philatelic Association of London
A GUIDE TO THE BOOKS IN THE OPAL LIBRARY (continued)
Osmanisches Reich - Die Ganzsachen ( Postal Stationery)
Die Provinzen des Osmanischen Reiches (in German)
Tughra and Duloz Issues Papers read to The Royal Philatelic Society London
Darphane-I Amire'nin Kisa Tarihi ( a short history of the imperial mint)
Croissant-Toughra (Armoires de L'Empire Ottoman (in French)
Notes on the stamps of The Ottoman Empire (in Arabic)
Loi sur le Timbre et Reglement des droits fixes
One Man's Journey into the Unknown --Tughra Stamps ( The First Stamps of the Ottoman Empire)
Illustrated Ottoman-Turkish Postmarks 1840-1929 Vol. 1 Letter A
M.Agaoguuari & B.Papuccuoglu
Illustrated Ottoman-Turkish Postmarks 1840-1929 Vol. 2 Letter B
M.Agaoguuari & B.Papuccuoglu
Illustrated Ottoman-Turkish Postmarks 1840-1929 Vol. 3 Letters C & D
M.Agaoguuari & B.Papuccuoglu
Ottoman Empire (continued)