Here is a very unusual and nice looking two-piece porcelain insulator from Germany. Raised embossing on the top of teh base section: 25A 500V 930.E2 2 (backwards) in a circle. Incuse marked with "M" with an "I" above it surrounded by symbol of a house. The same marking is also found on the side of the insulator. These were most likely used on overhead streetlights at railway stations.

Base view = [id=338256274] bottom view =[id=338256322]

The top has a large chip out of the back [id=338256094] and there is minor nibbling on internal umbrella threads. Still displays great! $90.00 plus actual postage.