Elgin Durabalance Glass Advertising Paperweight

Elgin Durabalance Glass Advertising Paperweight given to jewelers and watch retailers in the late 1950's as a way to promote their Durabalance equipped watches.  Yes, I did pay $100 for this when I got it many years ago but I realize they aren't worth that now.  However, this one is in pretty nice condition with only a small amount of age stains around the Durabalance logo. By the way, not a giant fan of working on Durabalance movements, but I digress.  Images do an adequate job of representing the item.