Extremely heavy duty marine hatch/ window. Purchased for a project that I’m not going to get around to. Never been fitted but I have had it quite a few years. Unmarked surround a what I believe to be glass window again unmarked. American I believe and probably manufactured for a specific purpose. All relevant dimensions in pictures and looks to be designed for very thick hull/ structure. Has integral removable fly screen and holds open in any position. A really nice quality item that would enhance any project.
eBay