I recently purchased a house that built in 1937. I believe the windows are original, and they are all casement windows. I'm not sure of the correct term, but the windows are clad in metal with a slot, as are the frames. From the look of it, they were suppose to seal by interlocking. However, at this point the windows won't fit into the frame at all.
I can't plane/sand the window or frame to account for the swelling that has likely taken place. Is the best bet to remove the metal and replace with another seal? If I remove the window, I may be able to plane/sand the hinge side, but I don't know if the metal will seal properly. What is the best way to deal with this, short of replacing the window?
I've wedged them shut for the moment, but I can open one up to take more pictures if needed. We're having a stink-bug issue, so I don't want to open them more than I have to.
EDIT - Added additional/better photos
I will measure it more precisely later, but it appears to sit square in the frame.
Photo of window opened
Photo of frame
Photo of closed window
This is as far as it can close