Vent wing handle removal - Early A

I need to send some parts out for re-chroming and am trying to figure out the best way to remove the chrome handle from the chrome base. There is a small pin in the handle keeping attached to the base (shown with the arrow). Any tips on removing the pin? Also, I need to remove the window from the base. Not sure which chemical I should use to dissolve the glue to get the glass out.

Thanks for the help!
Robert