Original 1964 Grumman Aircraft Engineering Corporation (GAEC) documentation photo of the Lunar Excursion Module (LEM) Test Model-1 (TM-1) Ascent Stage interior, most likely photographed as part of/in preparation for the mock-up review. Port (left) side perspective, at the Commander's flight station/position. I believe the two darker flat surfaces to the upper right represent, or are associated with hand controller positions. A portion of the circular forward hatch is visible to the lower right.
NAS 9-1100 is the contract number with NASA for GAEC’s development and production of the LEM/LM.