Antique Chinese Zee Wo Export Sterling Silver Powder Ring Box Trinket Pill Case Posted on September 3, 2023 by admin Antique Chinese Export Sterling Silver Powder Box Pill Case with Hinged Lid. Marked on bottom maker’s mark ZW for Zee Wo of Shanghai and other Chinese silver mark. Weighs 62.3 grams. One tiny nick on lid edge. No dings or dents. No damage or repair.