Here's an unlisted porcelain multi-shell unipart insulator from Spain. Following NIA conventions this beauty measures 3 5/18" x 3 1/8" x 2 3/4" x 4 1/4" tall. Unmarked. No cracks or chips. Light dome scuff and original short pin cemented inside. Not in any of the books or NIA website! Only 1 known!

First email gets this scarce unlisted porcelain insulator (slightly taller than a CD 154) for only $85 plus 11 shipping. Thanks!