I am told that it is quite valuable, and refinishing might lower the value. In the 19th century, furniture was refinished, sometimes even sanded and refinished completely, because the owners of old furniture wanted it to look new and shiny. It was highly polished in those days. Today there are some experts and collectors who feel that a piece should look as it did originally, not as though it has suffered from neglect. Some refinishing is again popular.
Collectors are fickle.
Collectors of '50s furniture expect it to look new. Many collectors of Arts and Crafts pieces want the original finish, but refinished pieces sell for nearly the same prices at shows. French 18th-century masterpieces in museums are often taken apart, the base woods restored and the pieces put back together. Even the metal trim is re-gilded. Decide if you want to live with your piece as it is or risk lowering the value so you can enjoy it more now.