Cannon
LK-R24C-22 camera cable connector
Cable =
Neoprene jacket with an outside diameter of 0.94 inch. 0.4 lbs per ft.
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21 single conductors of seven strands of #30 gauge wire
3 x 50ohm Co-ax cables
The shells were normally straight but 90 deg angle shells were available.
They were not "potted" and could be easily rewired.
This Cannon connector
was used on early RCA and Marconi cameras.