细节
Ophthalmoscopes and magnifiers:
a cased Morton's Ophthalmoscope by John Trotter, Glasgow; another ophthalmoscope; a textile thread-counter by Zeiss, with ebonised handle, three lenses, six aperture plates and two scale glasses, in fitted sycamore case; a magnifier on three baluster legs, signed Johnson London; a pocket magnifier; and a small red-painted and lacquered brass monocular in pasteboard case (6)
a cased Morton's Ophthalmoscope by John Trotter, Glasgow; another ophthalmoscope; a textile thread-counter by Zeiss, with ebonised handle, three lenses, six aperture plates and two scale glasses, in fitted sycamore case; a magnifier on three baluster legs, signed Johnson London; a pocket magnifier; and a small red-painted and lacquered brass monocular in pasteboard case (6)