68 912 Targa rear window specs/measurements

[Rlowry]

I recently had my 68 912 Targa painted. We cannot get the rear window back in place. It pops out at the bottom corners. I'm wondering if anyone knows what the window is supposed to measure from one bottom corner across to the other.

Mine measures exactly 50 inches across from the outside edges, and 49 1/2 from the inside edges.

Does anyone have a window sitting out of a car that they can measure to see if mine matches. Or does anyone know what the measurement is supposed to be?