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Photograph

Old Scale

Date: 04 12 1928
Description: View of a man taking Sodium Chloride (NaCl) out of a jar to measure it on an old scale on a table. The man is working in the Ricketts laboratory at the Agr...
Photograph

Toledo Scale

Date: 04 12 1928
Description: Man measuring chemical CaCO4 on Toledo Scale in Ricketts laboratory at Agriculture Chemistry Building, University of Wisconsin.
Photograph

Toledo Scale

Date: 04 12 1928
Description: Man taking chemical CaCO4 out of a jar to measure it on Toledo Scale in Ricketts laboratory at Agriculture Chemistry Building, University of Wisconsin.
Photograph

Peter F. Smyth Grocery Store

Date: 02 28 1928
Description: Interior of the Peter F. Smyth Grocery Store, located at 1202 West Dayton Street.
Photograph

Oscar Mayer Plant with Toledo Scale

Date: 02 28 1928
Description: Oscar Mayer plant interior with Toledo Scale.
Photograph

Ventilator Testing Cabinet

Date: 11 05 1954
Description: Man operating a ventilator testing cabinet at W.R. Carnes Company.
Photograph

Research Products Filter Fry Rack

Date: 01 11 1954
Description: A man displaying a Research Products Corporation rack for Filter Fry frying pan covers, "Takes the spatter out of kitchen frying."
Photograph

Research Products Filter

Date: 04 12 1954
Description: Workman riveting two filter frames together horizontally. Taken for Research Products, 1011-1015 East Washington Avenue.
Photograph

Research Products Filter

Date: 04 12 1954
Description: Workman riveting filter frames together in a L shape, taken for Research Products, 1011-1015 East Washington Avenue.
Photograph

Ventilator Testing Cylinder

Date: 11 05 1954
Description: Man operating a ventilator testing cylinder at W.R. Carnes Company.
Photograph

Carnes Company Testing Room

Date: 11 05 1954
Description: Man standing on a platform ladder adjusting a ceiling ventilator in the testing room at W.R. Carnes Company, wide angle view.

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