I finally managed to get my
IMCO 2200 lighter (1932) working, which is the predecessor to the 4600 that would have been available in small quantity in 1936 (Marion in Raiders of the Lost Ark) and that was, of course the predecessor to the 6700 that was probably the actual prop used that is still made today. The fulcrum seemed to be missing its rivet on one side and kept falling out. I got it working by drilling out the openings for the fulcrum screw with some round diamond and carbon steel files until a slightly larger Ronson fulcrum fit through that takes a screw on the other side to hold it together instead of a rivet. It actually now works fine and is easier to take apart, if needed.
After using FLITZ Polish....
Edit: Forgot part that helps to pull the top up (it was only popping up every 3rd time or so showing sparks shooting against the snuffer when it didn't move out of the way, although I swear it sparked better with it off....
Edit:
Oops. I turns out I had the spark wheel in backwards when I reassembled it with the little handle part. Unlike Ronson spark wheels that can only insert one way correctly to work with the clutch, this one has nothing to stop it from being inserted so it's not really grinding the flint. Now it lights every time with no real effort....
I also had the spring loaded wires inward instead of outward (as last photo shows compared to previous). I don't know what difference that makes, but I corrected that too while I was at it.