This is one of my favorite porcelain insulator styles ever made! Incuse embossed on the side of the crown with two rounded horns on top of 3 small round circles framed by a circle and a number 6 incuse mark beside it. The pointed dome and two holes on the arms are one piece that was glaze welded to the bottom piece. You can even see the excess glaze dripping out! I believe these functioned much like the early spook fuses that are seen used in Italy.

This cool piece has a grey glaze and is in excellent condition with only a pinhead flake! First email gets this fairly scarce insulator for only $100 plus actual postage. Thanks!