[old_tv_nut]

Interesting that they just attached a mirror to an OR light to get the overhead view. Looks very last-minute ad hoc.
I wonder if they reversed the scan in the camera to get the handedness correct.

In a way, the switch to NTSC was a step backwards for this closed-circuit use because the color resolution was so much poorer than the CBS system. The bulk of the three tube camera was not an advantage either.