To get some idea of the potential value, here are some recent ebay completed insulator auctions--WOW!!! Now these were NOT ours, but it's always great fun to see some gems that others have sold.
If you want to learn more, check out:
- 'The Insulators Page' ON COLLECTOR'S WEEKLY. It includes info, and many links to more sites, and their great widget list showing all the current highest priced insulator auctions on ebay that actually HAVE BIDS. You can see the full completed list, too. I can't say enough how much I am liking this site!