Here's a recently discovered ISOREX (front) 305 (reverse) glass insulator from France. Measures 3 7/8" wide x 3 3/4" tall. Has 3 skirts! Forest Green. Very close to CD 626.3A.

First email gets this unlisted Isorex 305 insulator with 5 teeny tic marks and 2 micro tiny base flakes. Thanks!