Keywords: Yesilkoy Air Base Istanbul 1911.jpg source http //en wikipedia org/wiki/Image Yesilkoy_Air_Base_Istanbul_1911 jpg Yeşilköy Air Base in Istanbul 1911 PD-Ottoman 8 March 2007 en User HavaKuvvetleriKomutanligi Military aviation of the Ottoman Empire Airships 1911 in aviation Yeşilköy 1911 in the Ottoman Empire |