ObjectsViewing Record 109 of 1394
Previous Record Next Record
Switch Views: Lightbox | Image List | List
TRIAL CASES, FRAMES AND REFRACTOR HEADS
Nitsche & Gunther Optische Werke
Europe: Germany, Brandenburg, Rathenow
Early 20th c.
wood; metal; glass
overall: 55 mm x 263 mm x 282 mm
Wooden trial case with hinged lid and brass clasp. Fixed internal rack of thirty spherical concave lenses in white metal rims with handles, ten cylindrical concave lenses in white metal rims, thirty spherical convex lenses in yellow metal rims with handles, ten cylindrical convex lenses with yellow metal rims, three prismatic lenses, a pinhole disc and stenopaiec slit and an eyepatch occluder. Lens powers marked on white scales from +/-20.00 D to +/- 0.50 D. German text on case lid.
Gift of Mrs Margeurite Knight via Mr and Mrs Thompson, 2014