Here's a rarely seen and very cool looking two-piece porcelain insulator from Germany. For more details and additional photo [id=195525946]. Raised embossing internally: 25A 500V 930.E2 2 (backwards) in a circle. Incuse marked with "M" with an "I" above it surrounded by symbol of a house [id= 215448703]. Marking is found on the side of the insulator and again on the top of the bottom piece. I believe these were used on overhead streetlights at railway stations.

VNM+ with only minor nibbling on internal umbrella threads and a small power surge brown spot. First email gets it for only $175 postpaid. Thanks