This image also accompanies an article I've posted concerning seeing - how we see or whether we see.
The unusual format is due to the limit of coverage of the 18.5 mm Angenieux on the 35mm frame. That lens had been mounted in the wing of a Boeing airplane and was used to make motion pictures of airport approaches for use in flight simulators. I got it from Boeing Surplus. A moonlighting camera repairman I sometimes worked with told me that he had installed it himself.