CD V-717s are in! These had to be requested from CD specifically, and issued based on need.
Same as the 715 but with a remote chamber and 25 foot cord.
Made between 1962-64 these have sat in govt storage.

Untested but still New Old Stock $80
Some have box some don't.
Automotive lighting Gadget Gas Box Measuring instrument

Gas Font Measuring instrument Cameras & optics Camera accessory