Thought I'd update this thread for future reference.
Recently bought this old 1930 HD from Lee (it's a reblue and I knew it and don't care).
SW38-44 HD 5-inch rl web.jpg
Lee said it was a Texas gun, which adds credence to the stocks being made in Texas.
The backs are "oily feeling" which says they're probably that Catalin stuff. No markings on the back side except an "X".
SW38-44 HD 5-inch grips fb web.jpg