28 pieces in total (too many to fit into the slots provided), this case was to accompany a 24 inch Ross #1 Exhibition monocular/binocular model microscope. Substage accessories are all 51 mm. in diameter and eyepieces are all 33 mm. in diameter. Everything is oversized and rarely (if ever) used. The brass bound mahogany case is basically a large cube with double door entry, functional locks and key.
Substage accessories include stops, analysers, polarizers, oblique illuminators, condensers, etc. 3 eyepieces
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