Sterling Silver Wallace Half Clam Shell Small Dishes. Wallace 393 They weigh 23 gram each. Approximately 3-1/2" by 2-1/2 x 3/4" tall.They both are in good condition. It rests on a ball footing. The item "Pair of Vintage Wallace Sterling Silver Clam Shell Dishes" is in sale since Thursday, September 12, 2019. This item is in the category "Antiques\Silver\Sterling Silver (. The seller is "moroz68" and is located in Holmdel, New Jersey. This item can be shipped worldwide.