Here's an unlisted porcelain insulator with a cool blue stripe! Marked with K in a circle and 44 (probably made in 1944). From Japan. Measures 2 5/8" wide x 4 3/8" tall. Not found in the books or NIA website. VNM+ condition (light use marks, tiny wire groove flake and very tiny nicks).

First email gets it for only $100 plus 11.00 shipping. Thanks!