Pyrex (1921 – 2007)
J.A. Jobling Glass acquired the licence to manufacture Pyrex in Sunderland, England in 1921. The manufacturing plant was known as the Milfield Plant. It ceased production at 9a.m. on the 28th September 2007. All British Pyrex has the mark (JAJ). Pyrex is now made by ARC Glass in France.
For more information see The Little Book of Collectable British Pyrex by Susan Hibberd ISBN – 978 – 1846855566