Here's a so-so pic I had in my files of a portion of Tommy Bolack's insulator mold collection. These are all authentic production molds that he has collected over the years. Displayed with some of the molds is the exact insulator that was once produced in the mold, right down to the correct shop/mold number. I know he has at least six individual molds, maybe more, including Whitall Tatum and Armstrong.