It is clearly stamped on the bottom, with a variety of marks. I'm not sure of it's age, but it's not new.
Rare & Gorgeous Antique Silver Plated Tazza by George Bowen & Sons, c1900
Audubon Bowen Octavo Quadrupeds Plate XXXIII Mink 1849–54 Bright Color Original
National Society Daughters of the American Revolution 1923 CARD L Bowen Shumaker
Antique Glass and Silver Plated Sugar Bowl/Dish. G Bowen & Sons
ORIGINAL Antique GEORGE III Three Panel Trunk Coffer Mule Blanket Chest c1700's
ANTIQUE Original GEORGIAN MANUSCRIPT in Frame (George II) 1683 - 1760 (VGC)
