Here is a rare Green glass cleat two piece insulator- the smallest example I have seen. Both pieces are embossed FOL. 1 5/8" long. Made in France by Folembray. Excellent condition with only teeny nibbles and one small slice. There is a nail or screw hole that goes through the center of the glass. The two small gauge wires fit in between the cleat. These are rarely seen or offered for sale.

First email gets this cool two-piece glass cleat insulator. Thanks!