Here's a rare unlisted porcelain no-tie insulator found in Spain. It measures 2 7/8" wide x 5" tall. That's a full 5/8" shorter than the U-2017 example shown on the NIA website from the UK. Unmarked.

Condition is excellent with only some minor rust stains (mostly one side, as seen in photo) and rub marks under the claws. VNM+

First email gets it for only $325 shipped. Thanks!