Here I am offering an unlisted and very unusual Italian green glass bracket spool. I have never seen one of these before, not even at a show so I suspect that these are not very common, plus I have been told that this is a lightning arrestor. The spool is a nice green with great glass quality and is stamp embossed into the metal inside the glass. SIEMENS H 400n Un = 250 V Ubm= 300 V 50 Hz 5 KA-64- .Insulator is mint and metal parts show age so it's not very new. If you're into the foreigns, you're really going to like seeing this one in your collection. Have you ever seen another? More photos available on your req. First mail to me... $155 shipped in USA/CANADA, other countries I will assist with shipping. I have decided to take this down to $125 shipped in USA/CANADA, other countries I will assist with shipping.