Bibliography: Encyclopedia of American Silver Manufacturers by Dorothyy Rainwater Tiffany Silver by Charles H Carpenter. Kovel's American Silver Marks by Ralph & Terry Kovel American Silversmiths and their Marks by Stephen Ensko Jackson's Silver & Gold Marks edited by Ian Pickford The Price Guide to Antique Silver by Peter Waldron International Hallmarks on Silver collected by Tardy British & Irish Silver Assay Marks compiled by F. Bradbury. Martele: Gorham's Nouveau Art Silver by L.J.Pristo Georg Jensen by Janet Drucker Chinese Export Silver by Forbes, Kernan & Wilkins The Sotheby's Directory of Silver 1600-1940 by Vanessa Brett