Here's a rare CD 211 No Leak D PATENTED (front) Brookfield (reverse) glass insulator with the very hard to find glass insert! This historical insulator was primarily used on the Stampede Pass Line.

This tough insulator has three popped base bubbles- one is 1" wide (seen in first pic) and two other match head sized on reverse [id=342038609]. Also two teeny paper thin flakes between two wire grooves (seen in first pic). Also has weird skirt flaw that looks like an "H" embossing but may be a teeny open bubble? The insert has 1" x 1/4" sliver bruise/flake and teeny sliver flake on base. As a bonus the insert has a nice amber swirl in it!

This is only the 2nd example of the rare No Leak with the very rare insert to be offered on ICON to the first email for $675 plus shipping. Thanks!