Kids Tour Plant, Jun. 1953 ID: 1530 | This file appears in: Jack & Heintz Co. Vincent Segulin shows his daughters, ages 6 and 9, how his universal tool grinder works during a special weekend tour for families at the Jack & Heintz Precision Products plant in 1953. Image courtesy of Cleveland State Library Special Collections Download Original File "Kids Tour Plant, Jun. 1953" appears in: Jack & Heintz Co.