I know finding info on these third-tier pen companies is rough. All the links I've come across so far to Penman details have pretty much been broken. I have learned it was most likely made in Chicago between 1941 - 1944, but I would love to know if there was a model name or anything to this one?



Secondarily, I've done a light polish on the barrel but it did nothing to get what I am assuming is years of finger oil out of the material - you can see that greenish cast below the lever where it was held. Any tips on how I might restore that?

As always, thanks a ton. The knowledge here is amazing!