Hello my name is Giles and my first post is a question. I bought a home that is about 20 years old and it has windows of the type I have never seen. They are unclad aluminum and what I call a storm window is mounted on the INSIDE. Both the top storm window and the bottom are movable and removable. The window also has external screens. The bottom window has two release leavers that will slide along a horizontal rail.
I cannot find a Name or Number anywhere on the window so I am asking if anyone can advise me.
I plan to add an additional room and would like to match.