Hamilton "2974B" Movement and Dial and a Grade "400" Movement

Hamilton "2974B" Movement and Dial and a Grade "400" Movement, Lancaster, Pennsylvania, 2974B with damascened plates marked "2974B/17 Jewel/Adj Temp and 6 Positions," no serial number; the arabic numeral porcelain dial with broad arrow; the Grade 400 with damascened plates marked "21 Jewel/five Positions," housed in an Illinois Watch Co. display case and storage case marked "Model Hamilton Diplomat Grade 400."