Rounded triangular shape with a heavy metal base, an adjustment knob, and an operator handle. Two pins protrude from below the base. IBM is in white letters at the front. Below the base there is an adjustment mechanism.
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Other number
400
Molded into the underside of the base, to the left
Other number
411
Molded into the underside of the base, an L inside 2 concentric circles, above "4249076"
Other number
4249076
Molded into the underside of the base toward the front
