Genesis DIN Valves for scuba tanks

Description

I believe these are the common size tank valve, 3/4 NPS, with the deep DIN opening typical of 3442psi rated valves.  They were installed on a pair of tanks that I bought used and converted to a twinset, so they're now surplus in my garage.  The only unusual thing about them is that the DIN opening is angled up a little rather than being straight out like most other valves on the market today.