transom hinge/arm stop
I have a custom transom that opens inward at the top. I am looking to attach a fixed stop that is as hidden as possible. There is perhaps a 1/8" gap between the window and outer frame on the sides, and it seems like I could fit a thin hinge arm in that gap if I found something suitable. Since it holds little weight, it could be thin material. See attached pic. Any ideas where to find this?
My next other choice is small diameter cable, or a flat fabric strap but I see no way for that to be hidden.