i measured across the bottom corners and it's 42 7/8 widest point towards the top is 43 1/2 in the center it is 11 3/4 tall center to center of upper hinge is just a tad over 31"
too small to be a 5-Window but not curved enough at the top to a 3-window. 5-window measures 43-1/4 at the bottom and 44" at the widest point toward the top.
it's a 33/34 mopar specifically dodge or plymouth. depending on the height it a coupe or sedan. If the brackets are removable and available for sale I'd be interested.
My 33 Plymouth coupe windshield is 10 3/8 high in the center. The taller height of yours means it's probably a Dodge which had a bit of a higher roofline.