American jewellers and silversmiths founded in Philadelphia in 1839, when James Emott Caldwell, a watchmaker from Poughkeepsie, opened a workshop and retail outlet on Chestnut Street. The company’s fourth Chestnut Street shop was the Widener Building, which it occupied for 87 years until it closed in 2003; it now operates in six suburban locations. In the 19th century the company made silver plate, but in the 20th century it became primarily a retail outlet....