Name/Title
Unidentified (Figure 86- Schwerd's ApparEntry/Object ID
2013.3.92Description
Description from L.A. Brown's 1959 catalog: "Figure 86 shows a velvet lined mahogany box which is 10-3/4 x 7-1/4 x 2-3/4 inches in size. In the box are found twelve wooden sliders. Each slider has four brass inserts. In the center of each insert is either a pattern of neatly arranged perforations of a steel grating or screen. These sliders are made to pass through the base of a viewing disc (see upper slider in illustration) which, in turn, has rectangular steel grating. This apparatus certainly is designed to illustrate some principle of light."Collection
Moosnick Museum - Scientific Apparatus
