Here's a Rare 7 1/4" long JP (front) PYREX (reverse) lightly embossed glass radio strain from the UK. "JP" are initials for Jobling-Purse, the name of the founder and his nephew who joined the James A. Jobling & Co Ltd in 1902. In 1931 Jobling won the rights to manufacture and sell Pyrex glass products in the UK (except Canada). In 1971 Corning bought the rights back along with ownership of the entire company! Insulator was made in England.

This tough strain is in VNM shape with 1 small bb ping, 2 tiny pings, 3 tiny tic marks and some light use marks. First strain I've seen that contains both Pyrex and JP embossing.

First email gets this elusive strain for the reduced price of only $175 shipped. Thanks!