Keywords: Akagi 1929.jpg en Forward overhead view of the Imperial Japanese Navy aircraft carrier Akagi soon after two twin 8-inch turrets were installed on the carrier's middle flight deck in 1929 Ships of the World via Stille Mark Imperial Japanese Navy Aircraft Carriers 1921-45 Osprey Publishing Westminster MD 2005 p 11 Not stated 1929 PD-Japan-oldphoto Akagi three flight decks Black and white photographs |