Thank you , but they no long stock these parts and was hoping to find the original supplier of these windows
The glass manufacturer 's name should be etched into a corner of the glass somewhere. CMR used to make a lot of glass and stainless portlights for Italian yachts 20 yrs. ago but that was before designers & builders went nuts with compound curved panes in coach roofs and hull sides.
The glass or the electric power option has failed? There are glass shops that can reproduce the glass. Re-inventing the wheel may be required to fix a motor problem. Mfg name may be on this hardware. No longer stocking parts does not mean they do not know who made it or who higher up the scrotum pole you can contact. If you do find somebody that wants to help you, get the mfg, order and job numbers. The mfg can go back and make you one or two.