1 now, double-hung sash @ 30 x 25 upper, 30 x 26 (both upper), 32 x 24 lower. Plus two storm sash 32 x 50 ea w 30.5 x 15 screen & 1” flange all round. The double hung all have a narrower middle bar, so that not all sides are equally wide, and the lower is wider yet, and the mid bar has a tapered edge. The exterior aluminum storms each has a cracked pane, sadly, and the (3) individual sashes do not move smoothly, nor always lock in place, but it can be jiggered to work. If you’re using with the screen, the one cracked pane wouldn’t be needed. Better photos could be done, if needed.