Eric Bradley, an associate with Heritage Auctions in Dallas, the world’s largest collectibles auction house. He is the editor of the annual Antique Trader Antiques & Collectibles Price Guide and author of Mantiques: A Manly Guide to Cool Stuff (both from Krause). HA.com
They Could Be Valuable The old electronic gadgets gathering dust in your attic might be technologically obsolete, but they still…
