Collecting » Insulators

Recreation, Collecting, Insulators, For Sale - Open Wire Insulator Services. This commercial site presents the details of a full range of collector services including on-line insulator auctions and consignment services, augmented by an optional full-color hardcopy catalog.

https://www.open-wire.com/

Spec-Tru Glass Color Reference Tool

Recreation, Collecting, Insulators, For Sale - Spec-Tru Glass Color Reference Tool. A color reference system combining the functions of colorimeter and spectrograph as a tool for identifying the colors in glass collections.

https://www.spec-tru.com/