The one I had was an old Woodlin window from the late 40's.
The glass in them is difficult at best to replace without ruining the frame, and it was a so-so design as far as actually sealing.
So, I asked a friend out West for help.
He found a very nice Hehr double vent for me at a trailer salvage yard.
The aluminum was a little pitted, and the glass and frame was slightly sandblasted from sitting in the desert for so many years, but it was straight, and very repairable!

As is common with these old windows, the rubber seals and weatherstrip were no longer soft and pliable.
Someone had painted the trailer, and gotten a little close to the frames, and so the frames were a couple different colors.
The frames could have been polished, but I've had enough of that after the Sportsman project...and it wouldn't have matched the wood look anyway.
So, i dis-assembled them, every last piece and part.
Then they went into the sandblaster, which prepared them for their new paint job.
After painting, the new glass I had cut was installed with new seals and weatherstrip.

I used a glass that you can't see through, like one would use in a bathroom...since it is in a bathroom...
I don't have any decent shots of the other window, cause it just didn't look good enough to photograph...
Don't mind the little white blurry spots in the picture, it was snowing in that shot.
Before

After


When viewed from the front, dead on, the black almost looks out of place, but at any other angle, with the side windows also visible, it looks right.
When I get the rock guards (black) on the front of the trailer, the window will just blend right in

Rob