PLAN No. 960. AREA OF EMPLOYMENT
The area of employment in the trade is largely in the East, about 75 per cent in New York, Newark, and the cheaper-grade factories in New England. There are some jewelry factories in Chicago and other large cities in the West.
Tools and Machines Used
The tools and machines used in the trade are chiefly the following:
Drop hammer up to 200 pounds to a large degree power lifted.
Punch and cutter presses.
Lathes, machine and speed.
Power, plate, and wire rolls.
Power drawbenches.
Welding and soldering outfits.