Antique Waltham Art Deco Working Shelf Mantel Clock. Handed down to me. The item “Antique Waltham Art Deco Working Shelf Mantel Clock” is in sale since Saturday, August 29, 2020. This item is in the category “Collectibles\Clocks\Antique (Pre-1930)\Shelf, Mantel”. The seller is “tupperkel” and is located in Grass Valley, California. This item can be shipped to United States.