Not paper, inkjet printable "Transparencies". Used for overhead projectors.
You can clearly see the transparency on top of the folder it came in. hint: check out the white strip at the top with the shark fin logo.
A rotated view that makes it easier to see.
I've had these for years, needed them when going to school to learn AutoCAD, think I bought them at the school library, or a survey supply store.
Recently found some with a sticky back to use for clear fins on some of my rockets that don't have fins to stabilize them. You can find all of these by searching for inkjet printable transparencies.
These are great for making clear canopies! Windows in buildings, Or to simulate propellers on airplanes.
Edit: Great White is made by International Paper-Memphis, TN.
Hope this helps!
Mike