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Description
Early 20th century scientific apparatus consisting of an L shaped iron base set with a small mirror below a brass protractor and two rotating indicators. Likely for use in demonstarting / measuring the angle oof incidence and reflection of a beam of light. Produced by the Chicago Apparatus Company of Chicago, USA. Faience Laboratory Equipment.
"The Chicago Apparatus Company was located at 40-42 Quincy Street in Chicago, Illinois. In a 1910 catalog (their third) this company offered a two slide tuner complete crystal set. This is one of the first commercially offered complete radios albeit a crystal set. In 1910 R.R. Shaw was president of the company and M.C. Stoelting was secretary and treasurer. It is not know if this company was related to the later Chicago Radio Apparatus Company from Chicago." (Source: Radio Museum)
Condition
Good Overall - Gentle wear commensurate with use/age; tarnish/slight rusting; flyspotting to mirror
Dimensions
5.5" x 3.5" x 3.25" (Width x Depth x Height)