✅ SOLVED ??Old sliding wood window???

[treasurepirate1]

i have this old sliding retractable window, and i am wondering what it would have been used for, it is 20 inches x about 8 inches pushed all in and about 33 inches fully extended, it has dove tail notches on either short ends with what looks like screw holes to permanently hold it in place wherever it was held, so it looks like it was built to be retractable but also meant to permanently stay in place which really confuses me, maybe it was built for something with a frame that slides with the window, or something that comes in various sizes and would fit all the sizes , it isn't very decorative or of any notable quality like old wood house windows but i really love old wooden windows and always love to learn more about them so any in information on this window or any websites about old wooden windows would be appreciated thanks,

 

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[GMD52]

the back sliding door to a large showcase that a friend has in her Antiques shop looks very similar. It allows you to see thru, but also not touch any thing while unattended.

 

[vpnavy]

Almost reminds me of a window between a truck cab and bed treasurepirate.

 

[Erving]

Might have been used as a cellar window.

 

[treasurepirate1]

thank you for the information on that, i don't think i weill ever be able to figure out what it exactly came from but i think that is the best answer i'v heard, thank you