Vintage Double Hose

Hi,

Can anyone tell me more about these? I was thinking these are French yoke wrenches used before yoke knobs became popular. I would like to know the manufacturer and what reg they were made for. They fit a ‘56 La Spirotechnique Mistral yoke knob (metal knob with a bolt type protrusion).

They appear to be Spirotechnique wrenches. I know they were used with Mistrals and they were included in the military tanks sets that came with double or triple tanks, a light, Spiro Mistral reg, a tank pressure gauge and tools all in a custom box. It looks like this:

http://www.flashbackscuba.com/action/HD ... age28.html

They may have been used by other companies but not that I know of.

-Ryan

I have the one with the long handle on it. It was attached to the yoke of my black label broxton. The wrench is stamped "Made in France", so it has to be Spiro.