They might have been common back in the day when you could still order them new, thought never really in the USA, but finding one that isn’t already attached to a regulator that isn’t for sale is near impossible now.
A conshelf supreme din would sell within a few hours of being listed almost anywhere for sure. And probably for a ridiculous price.
Half the problem is the near mystical reputation the conshelf 14 has (they don’t actually perform all that amazing) and the fact that most of them seem to have been sold in the USA with yokes.
It was WAY easier and cheaper for me to put together a set of three old style titan supreme din regulators. Still I couldn’t pass up this din adapter since I still have a shiny new conshelf 14 first and three shiny new really late 14 second stages (on the Titans at the moment) that I like because the late ones had the plug opposite the hose that makes setup a whole hell of a lot easier for people like me that don’t rebuild stuff enough to have a good feel for it. Basically you can adjust lever height with the cover still on through the plug hole.
I read somewhere that really late 14 firsts had an extra lp port or a normal size hp port or some such change (I forget now) but mine is late enough to have the “14” instead of XIV label and it still has the same ports. Later conshelfs had more I think but the only site I knew of that had a list of conshelf first and second stage models and changes dissspeared years ago.
