Here's a rare unlisted French Cross Top porcelain insulator. Measures 2 1/2" wide x 3" tall! That's a full 3/4" shorter than the U-1692A shown on NIA website! This has the transition era pinhole with three circular rings inside! These are post threadless, yet before threads for mounting on a pin. Circa 1880-85. Mint condition and sparkling clean.

First email gets this tough French porcelain cross top insulator for only $150 plus 12.00 shipping. Thanks!