| The Insulator Museum of the firm NGK Insulators, located in Nagoya, Japan, is the only museum of porcelain insulators in the world.[1][2] The museum contains some unique items, including a "pin insulator for communication" manufactured in 1875 that is believed to be the oldest domestic Japanese insulator.[citation needed] It has "approximately 5,000 pieces of insulators and maintenance tools from 21 countries... and 57 manufacturers."[1] About 300 pieces are on display at any one time.[1] It also has a detailed and informative display on the material, processes and applications. |
