The coarse focus mechanism, consisting of a spring and fine-pitch screw thread, moves the microscope body.
Knurled coarse focus knob.
The knurled knob descending below the stage pushes on the upper stage plate to effect fine focus.
Fine focus knob unscrewed has allowed the top stage plate to lower.
The four mounting screws on the right side of the stage forces the stage to bend up on the left side when turning the focus knob.