Browse Items (327 total)

1948 Wisconsin Physicist, PbS Cell

Lead Sulfide photocell

A. Hilger - London, Prism Eyepiece

Spectrum producing eyepiece with 3 interchangeable dispersal elements

A. Hilger, Ltd. - London, Schmidt Camera film holder

Spherical ground glass film holder for Cogshall Schmidt camera

Allen Brothers, Stencil

Brass painting stencil

Arthur Adel/Carl Lampland, Rock Salt Prism in glass dome

From Adel-Lampland 40-inch Spectral radiometer
Removed 7/10/1991 by H. Giclas

Arttop Specialties, Artascope

Kaleidoscope produced by Arttop Specialties of Rochester, NY. Objects put on platform can then be viewed as the source of the kaleidoscope image.

Bacharach, Tempscribe

Device to record ambient temperatures over periods of time.

Bacharach, Tempscribe

Device to record ambient temperature over periods of time.

Baird, Shutter

Electrical Obt. Shutter

Baird & Tatlock - London, Lens

Lens (Cylindric +5) order dated 19.6.33