JAJ Pyrex: A Brief History - PYREX was patented in America in 1915, and the name PYREX is still a registered trademark of Corning Incorporated. PYREX glass was produced in the Sunderland UK, under license, between 1921 and 1973 by James A. Jobling. Having been made only during this limited period it is becoming increasingly rare and collectable.
Model 513, JAJ Made In England
