Hi AtomicGecko;
Your side windows are neither louvered or jalousie, which is a window composed of parallel glass, acrylic, or wooden louvers set in a frame. The louvers in a louvered or jalousie window overlap each other. Instead, yours is a Hehr (brand) Standard window used in the 1940s, 50s, and 60s.
Try this to remove your damaged aluminum window frame. Disconnect the notched opening adjusting bar from the window center vertical rib by unscrewing or unbolting it. Leave the adjusting bar in the window screen. Now from the outside lift the aluminum window frame as high as it will go, and it should drop out of the hidden hinge underneath that window frame's top cover. If that gets the window frame removed, now you can straighten the window's aluminum skin with a rubber mallet on a vice's flat work surface or on another large hard flat surface. Remove the Inner "L" angles that hold the (missing) glass pane in place by undoing the nuts and bolts (as I recall).
Buy a replacement glass pane and the outer Hehr Standard glass seal (in grey) that holds it is place, available from Vintage Trailer Supply here:
https://www.vintagetrailersupply.com/hehr-standard-glass-seal-vts-195/
If your other Hehr Standard window seals are crispy, you might consider ordering enough new glass seal to replace them all.
If you are unsure of a replacement glass pane's measurements, remove the good window above your damaged one, remove its glass pane and measure it for correct dimensions.
Hope this helps.
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Can just the louver be removed or does the whole unit have to come out? I know how to glaze it but can't figure how to get the frame out. Any assistance would be greatly appreciated.
