![](http://www.alamy.com/thumbs/6/C1C761C5-B432-4C15-9D0B-A4AA719595C4/E3TCT6.jpg)
Douglas AC-47D, Mk 20 gunsight and test camera, via Mutza
Size: 1843px × 1355px
Photo credit: © Aviation History Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 20, ac-47d, aircraft, aviation, camera, douglas, douglasac47d, flight, gunsight, historic, history, mk, mk20gunsightandtestcamera, mutza, plane, test, viamutza