Old gun serendipity

A while ago I put up a bad shot of an old H&R "The American Double Action."

I finally started putting it back where it belongs this morning, and for some reason stirred the box of old partial guns ( plus gun parts I can't identify).

Lo and behold, I find I have a second YADA, identical except for barrel length, and it seems to bear all the parts the other one is missing. I feel a half-day in the shop coming on to meet my urgent need for another ancient revolver shooting an obsolete, barely available, largely useless, and ruinously expensive caliber for which I have neither brass nor dies.

EDIT: Fuggitaboutid. No trigger spring. But it looks good on the wall.