This sterling silver covered butter dish with glass insert is stamped <M> Sterling 1133. This is the mark of the Mueck-Cary Co., New York, acquired by the Towle Co. The sterling is pristine and shows little, if any use! It is embellished with a "gadroon" or scalloped edge with leaf corners. It measures 7 in x 4 in x 2in. The total sterling weight (minus the glass insert) is 9.9 oz or 280 grams. At the current price $14.84 per troy oz sterling, there is $123.55 worth of sterling i...n the dish. The quality of the sterling work is impressive! They were purchased pre-world war II by my grandparents on their trip to New York City, around 1941.