There is another brand name in the market now, as discovered the hard way from an end customer. A friend recently ordered glass from Victoria British (Mar 04), asked about the brand at time of order, but order taker didn't know. Order was delayed a day or two until he could talk to a "manager". Manager told him it was Triplex glass, so the order was placed. Upon reciept the glass turned out to be VELAS brand. This glass is labeled as shown on left. (No photo available). The thickness of this glass, measured at several points around the edge, is 0.233 inch. This is reasonably close to the desired 1/4 inch nominal spec, so nothing wrong there. However, ....
The glass was finally installed July 15, 2004. When installed it is obvious that the perimiter dimensions are too small all around. The height is a little shy, so it required a packing strip in the bottom frame. The length left to right is at least 1/4" too short. This leaves gaps at the lower corners to pass wind and rain, certainly not acceptable. So this glass is going back to V.B.
For technical information on MGA windscreen frame restoration and installation of the glass, check MGA Windscreen Tech.
See additional notes on MGA windscreen sources, and dating of original glass at:
WT-103 - Windscreen Additional Notres