Help Identify tap/faucet

[SP0tter]

Can you identify this tap/faucet?
I bought this tap from a yard/garage sale or flea market some years ago.
Last time I took it apart for cleaning I lost one of the 'O' rings,
so now I can't use it, because it leaks
I use it for Stout.
I suspect it was originally used, with Nitrogen, for Murphy's Stout,
but that is a guess.
The strangely tinted 'Assembly'/exploded parts image was made to help re-assembly after dismantling for thorough cleaning.

 

[SP0tter]

My goodness!
Not one reply, even after eleven years
I found the 'O' ring I needed and have been using the tap/faucet for stout for years.
Anyone able to identify it?

 

[day_trippr]

Your first post on this topic was on March 13, 2021, not even 3 full years ago.
And that looks like an old timey soda faucet to me, but I suppose it could be an almost 3 year old stout faucet

Cheers!