I have an A.J. Aubrey hammerless single shot 12ga.
32" full choke, Auto-Eject, Laminated steel bbl I think it is,,maybe Twist(I'd have to look again).
It was auto-safe but I disabled that.
I rebuilt the action and made a new FE for. Fixed the broken in two butt stock.

Bought it as a junker parts gun (obviously!) and really not worth the time & effort to bring back in terms of time and $$.
A friend joked that the best thing on it was the orig butt plate, and it is a nice condition one at that!

But I just liked the lines of it and had never seen one before. So we do stuff like that I guess...
Some of their hammer single shots show up now and again, I still have one of those that needs wood.
But this was the first hammerless AJA/Meriden single I'd seen.
AJA/Meriden advertisements showed a 'Trap Grade' hammerless single w/a ribbed bbl. But mine is just the Farmers version I guess w/plain bbl.

It gets some shooting in at duffer skeet & some trap w/light hand loads.