Here's a pair of unlisted (and unmarked) Norden Porcelain insulators from Denmark. At first glance they appear to be just another pair of ordinary insulators. But upon close examination you will find the characteristic XXXX pattern in the wire grooves that are uniquely found on early (and some modern) Norden insulators. These examples also display matching 3-piece mold lines and both used a cap that created a mold line across the perimeter of their outer crown. Both examples have orange peel skirt glazes and are unlisted in the Worldwide Porcelain insulator books and the NIA website.

On the left is a style that I have found in catalogs of insulator distributors dated to circa 1900 (offered along with early no-tie insulators!) Measures 2 5/16" wide x 3 1/8" tall. Has 1/2" base chip and 3/16" glaze flake (seen in pic). Heavy for its small size. $40 plus shipping.

On the right is a very small (and early) dry process insulator with typical factory cracks but not damage in the inner skirt. 2 tiny flakes otherwise excellent condition. Measures 2 5/8" wide x 2 1/4" tall. $40 plus shipping.

First email. Buy them both and get these scarce unlisted insulators for only $75 and free shipping.