Near relic Smith and Wesson Russian Model(?)

[Anzac15]

I'm beginning to lean more and more to the Spanish theory.
This one did not have a lanyard loop..that 'circle' is a crudely etched zero or 'O'. One figure looks like it may be a 4, but again, too crude to really tell.
I've really been going over this revolver tonight, and if is Spanish, its one of their versions of 'Khyber Pass' firearms. I have found one number on it..1470, and it is on the underside of the latch. And is stamped. So far that's the only 'official' looking marking on it.