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Physical Description The calculator generally comprises three main parts: the main housing, the keypad, and the output carriage.The main housing for the calculator is rectangular as seen from the top, with one pale green slanted face on the front…

Front face with lid opened:

Knobs: Toward the top of the box on the front face, there are 3 screw knobs (two on the left, one on the right). Each dial has a knurled surface, and when unscrewed, reveals a metal electrical lead. Above the knobs…