The thread "Where to buy basic stemware?" got me thinking. I know this topic is spent, but went back to some of my old books. "ACADEMIE DU VIN COMPLETE WINE COURSE" by Steven Spurrier and Michel Dovaz (1983! God, I'm old..) . The glass they describe is:
Total Height: 155mm +- 5 Bowl Height: 100mm +- 2 Base and stem height: 55 mm +- 3 Diameter of top: 46mm +- 2 Diameter of bowl at its widest: 65 mm +- 2 Thickness of stem: 9mm +- 1 Diameter of base: 65mm +- 1 Total capacity: 215ml +- 10 Tasting quantity: 50ml