Just obtained this (unlisted in GIFONA) Isorex 3-part glass power insulator at the Keene NH bottle show. Maximum diameter is approx 10 inches, max height is about 9 1/4 inches. Glass is colored "French Wine Bottle" green. Each section is embossed with ISOREX on "front" and 835 on "rear". These are in quotes as the sections do not have the embossing aligned with tach other. The piece is currently not available for sale or trade. There are a couple chips around the rim of the "dome" The cement holding the three sections together is slightly "loose". THis piece has definitely seen "action" for some length of time.

I re-measured the dimensions, they are 9 1/8 inches tall, the top disk is 10 1/8 inches, middle disk is 8 7/8 inches and botton (base) diameter is 7 3/4 inches, these are nearly identical to those for an EIV or L'Electroverre CD 379 listed in GIFONA, which was used in France, and also in Syria.

[IFONA CD 378.7]