Disassembled microscope body showing the objective tube and ivory snout, and the eyepiece drawtube with its ivory retaining ring and dust cap.
The biconvex objective lens (dia=6mm, f=10mm) is held in place by a metal retaining ring (arrow).
The biconvex eyelens (dia=1.6cm, f=4.0) is held also by a metal retaining ring (arrow).