I have a copy of the 2007 Insulators Price Guide that has never been used. I know that this issue is 5 years old but the vast majority of the insulators listed are still about the same value. This will be the ideal book to have with you at flea markets, tag sales, antique shops or anywhere on the road. If you just don't feel that you want to invest $50 in the 2011 edition of the price guide, here is an alternative. I'm asking just $15 and that will cover the shipping anywhere in the U.S. This one item is being offered to U.S. addresses only.