Improvements #00 Brown & Sharpe
Screw Machines Since 1955


Improvements #2 Brown & Sharpe
Screw Machines Since 1957





Improvements #3 Brown & Sharpe
Screw Machines Since 1965



After S/N 542-3-459 the #3 machines were incorporated with the #2 serial numbers, but a 2 or 2 3/8 capacity spindle still has a -3- in the serial number