Middle model No. 4 microscope with mechanical stage, c.1890
Among the accessories
are four objectives with canisters marked 3, 5, 7,
and 9 (immersion), two eyepieces, an Abbe condenser,
an aperture stop and holder, a stage micrometer, and
a dissecting needle. The focusing substage includes a
swing-out iris diaphragm. The mechanical stage
motions are calibrated in both directions. There is a
fitting in the case for a free-standing bulls-eye
condenser which is no longer present.
The following was extracted from the 1892 Nachet catalog: