I found a great dump in Budapest. I found there old half cut trams. I looked either one's roof on the floor. On the old trams are 4 pair this type Insulators, which hold the high fuses. I put off the tram's control panel lot of new switches, signal lamps too. I found interesting things. Unfortunately I could not put off resistor holder spools. I found old trolley buses too, but they didn't have anything. I paid for the 3 Insulator $2. They are rare, and very difficult to find. Their head are from moulded copper.

[IFONA]