I’m always hesitant to say from a couple internet photos that a gun is positively a Webley screw grip. Our own “Gunman” worked in the factory, and pointed out that there was a second action, that was common, and similar, but NOT a Webley Screw Grip. That action didn’t have a proper name, as he recalled. It was used all over the place, also.
I think Dustin is right on the money with how to properly I.D. a Screw Grip, but, I can’t see inside the action in these photos.
Best,
Ted
I'll work on finding time to take it apart in the next few weeks and will post what I find.