OP, welcome to the Forum!
What kind of front sight does it have? The same as H Richard or like a Model 15?
Reason I ask is that I had one or two 36-1s converted to adjustable sights, including real J-frame rear sights, back in the late 70s - early 80s by a Denver gunsmith named Tom Butler. He did incredible work. You couldn't tell it from a factory job. I've always wondered what happened to those after I sold them off....