Late Ottoman flag (1844-1923) which was made based on some historical documents listed in the Source section.
(Original text : http://www.vicmart.com/ext/en/exrw/item=1416 - Ottoman medal from 1850
http://en.wikipedia.org/wiki/File:Nordenfelt_submarine_Abd%C3%BClhamid.jpg Ottoman submarine Abdülhamid (1886)
:Image:Aff_ciwl_orient_express4_jw.jpg - 1888-1889 season timetable of the Orient Express
http://en.wikipedia.org/wiki/Image:Young_Turk_Revolution_-_Decleration_-_Armenian_Greek_Muslim_Leaders.png Photo from 1908 (primary source)
http://img148.imageshack.us/img148/62/osmanischemarine4hk1.jpg Photo from 1909 (primary source)
http://www.tayyareci.com/digerucaklar/turkiye/preww1/Bleriot%20XI%20b%20TuAF.jpg - Photo from 1912
http://www.manorhouse.clara.net/book2/chapter18.htm and http://www.manorhouse.clara.net/book2/jihad.jpg - Photo from 1914 (primary source)
https://www.flickr.com/photos/inanc2/1360902178/sizes/o/in/photostream - Photo from 1914 (primary source)
http://www.manorhouse.clara.net/book2/chapter21.htm and http://www.manorhouse.clara.net/book2/crowd.jpg - Photo from 1914
http://en.wikipedia.org/wiki/Image:Ottoman_Navy_at_the_Golden_Horn.jpg - Postcard from 1914
http://www.tayyareci.com/digerucaklar/turkiye/ww1/gothawd12.jpg - Photo from 1915
http://www.tayyareci.com/digerucaklar/turkiye/ww1/gothawd2.jpg - Photo from 1915
http://www.tayyareci.com/digerucaklar/turkiye/ww1/gothawd13.jpg - Photo from 1915
http://www.tayyareci.com/digerucaklar/turkiye/ww1/sakir_feyzi_resimleri2.jpg - Photo from 1915
http://www.tayyareci.com/digerucaklar/turkiye/ww1/S.P.A.D13.JPG - Photo from 1918
http://upload.wikimedia.org/wikipedia/commons/7/79/SultanahmetMitingi.jpg Photo from 1919
http://www.osmanzengin.com/ESKi__iSTANBUL/kararkoy02.jpg - Postcard from 1920
http://www.osmanzengin.com/ESKi__iSTANBUL/tepebasi.jpg - Postcard from 1920
http://www.tayyareci.com/digerucaklar/turkiye/kurtulus/fiat-r2.jpg - Photo from 1920
http://www.tayyareci.com/digerucaklar/turkiye/kurtulus/breguet14b2.jpg - Photo from 1922

http://www.tayyareci.com/digerucaklar/turkiye/kurtulus/nieuport27-2.jpg - Photo from 1922)
Kerem Özcan