Dear Mr. C;
Check with Patrick's in Casa Grande, Az. for info on those. Also; there's a Bob's Antique Auto Glass in Washington State or Oregon that would have it. He advertises on e-bay a lot.
As I recall the 50 olds windshilds were used in the Chevy passenger cars (49-52) but not the trucks.
One of the places posted should get it for you.
Good luck.
