Hello, rustinaway,
I cannot find your photo.
I do not know how to link to a specific facebook photo, so I am unable to give you instructions.
You might want to use a free hosting site (Dropbox is free, and it has a "Public" folder, and does not have advertising.
1951 panels did not come from the factory with rear side windows (of any shape). They must have been installed by an owner or a conversion company.
