Four years ago, I bought a full set of '40 coupe glass from Sanders. The "bug" request was for a 11/'39 date to match. I didn't get around to installing for another year. The glass was dated 11/'40. The guy that bought the car detailed the coupe and won a Dearborn at a regional meet. For me, I have some quarter window glass, NOS, way wrong date. Perhaps that could land me a Dearborn along with another fifty other faults. That '39 stuff can be a problem. Good Luck: Fred A