Hey Nailhead, (sorry, you didn't put a name o No: ) Try this link. I don't have any idea which one will help you because you have no location in your profile. http://www.glasslinks.com/autoshop.htm Of course, Hemmings Motor News would be a good start to check for glass distributors. Since it's not a front or rear windshield, things could get tricky. Junkyards wouldn't hurt either. Good luck.
B59's Hey Mr. Nailhead please checkout this site -> http://www.buick-59.com, the wagons are all the rage over at that forum right now :TU:
If you are a member of the buick Club of America , look in roster for a member in Minn. who Owns a 1960 Electra Estate wagon, Mostr beautiful wagon I have ever seen. About 3-4 years ago I gave him rear side glass from a 60 Wagon i had lying around. If you can find his name he may still have them. I believe that 59-60 is the same glass. Very rare piece. Jim Schilf palbuick