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Digital clock with decorative phenolic plastic casing

Plastics and Modern Materials

1925-1940

Brown phenolic electric digital clock with `TELE-VISION' on the face. Made by Penwood Numechron Co., U.S.A., c. 1930. Art Deco design.

Cardboard box for I-Rite optical pyrometer

Heat

1901-1958

Cardboard box for I-Rite optical pyrometer, made by the Gibb Instrument Co., Pittsburgh, Pennsylvania, United States, 20th century.

Air check sampler, 1996-1999

Environmental Science & Technology

1996-1999

Portable ‘Airchek’ particle sampler, model 224-17SD, made by and supplied through SKC Ltd, Blandford Forum, Dorset, England, and SKC Inc., Eighty Four, Pennsylvania, United States, 1996-1999. In original shrink-wrap polythene packaging. Computer-controlled version of original 1986 model, devised for flexible and safe use in a wide range of environments.

Westinghouse Induction Voltmeter, no. 303720, 45-6

Electricity Supply

1905-1924

Westinghouse Induction Voltmeter, no. 303720, 45-65 cycles, 10,000 to 60,000 volts, by Westinghouse Electric & Manufacturing Corporation, patented 1896 and 1905.

Breathalyzer, model 1000, fully automated, made by

Experimental Chemistry

1975-1980

Breathalyzer, model 1000, fully automated, made by Smith and Wesson, Pittsburg, USA, 1975-1980

Two bottles of Smiths silicophosphate cement, liqu

Dentistry

1920-1940

Two bottles of Smiths silicophosphate cement, liquid and powder, by the Lee S. Smith Co., USA, 1920-1940

I-Rite optical pyrometer, made by the Gibb Instrument Co., P

Heat

1900-1939

I-Rite optical pyrometer, made by the Gibb Instrument Co., Pittsburgh, Pennsylvania, United States, 20th century.

Assembled photographic portraits of The Faculty and Class of 1905, Department of Pharmacy, Western University of Pennsylvania

Photographs

1905

Assembled photographic portraits of The Faculty and Class of 1905, Department of Pharmacy, Western University of Penna (Pennsylvania). Arranged in a circular frame.

Sorbent tubes for air sampler, 1995-1999

Environmental Science & Technology

1995-1999

Seven sealed glass tubes containing sorbent crystals, made by and supplied through SKC Ltd, Blandford Forum, Dorset, England, and SKC Inc., Eighty Four, Pennsylvania, United States, 1996-1999. Used with a sampling pump in monitoring different gas constitutents in the air.

Coal Mining Sef-Rescuer

Coal Mining

c.1960s

A coal mining self-rescuer, made by Mine Safety Appliances Company.