SBD-5 White 12 of AMSB-331, Majuro Atoll, June 1944.
Marine Corps squadrons frequently drew aircraft from an air group maintenance pool, resulting in occasionally contradicory markings. This Dauntless in the Marshall Islands is a case in point, with the previuos unit number 26 being blanked out by dark grey paint applied the Vertical tail surfaces. The white 12 applied ahead of the fuselage national emblem was presumably 'permanent' number intended for this aircraft, which flew anti-submarine patrols.
Blank and Nomarking too.
Credits in Reame.
Skin can be downloaded at M4t.com or Flying-Legends.net.