mrechenard
Active Member
nia.org which has a VASTLY great resource directory. There is the North American Glass Insulators Price Guide for glass, and there is the Porcelain Insulator Price Guide by Elton Gish.
https://www.glassdiscoveries.com
https://auction.theinsulatorstore.com
https://allinsulators.com this is a great resource for info.https://www.glassdiscoveries.com