Compound monocular drum microscope by Trecourt and Georges Oberhaeuser Microscopy (Wellcome) 1825-1850
Photomicrographic microscope with sliding prism so that a second person can be shown the specimen Microscopy (Wellcome) 1851-1875
Compound monocular microscope in poor condition, English, 1831-1860 Compound monocular microscope in poor condition Microscopy (Wellcome) 1831-1860