This analytical balance has a 5-inch beam, agate bearings, and wooden frame with glass sides. The inscription on the ivory scale reads “W. SPOERHASE SUCC. TO C. STAUDINGER & CO / GIESSEN / A. H. THOMAS CO AGENT / PHILADA 3488.”
Carl Staudinger began making analytical balances and other precision instruments in Giessen in 1842. Wilhelm Spoerhase took charge of the firm in 1888. Arthur H. Thomas began bringing Staudinger/Spoerhase balances into the United States in 1899, and was soon supplying them to “practically every University, College and Technical School” in the country; some institutions had upwards of 75 of these instruments in actual use. The importation of these balances ceased with World War I.
Ref: German Educational Exhibition, Scientific Instruments (Berlin, 1904), p. 185.
Arthur H. Thomas, Laboratory Apparatus (Philadelphia, 1914), pp. 46-47.
Currently not on view
date made
early twentieth century
Wilhelm Spoerhase
place made
Deutschland: Hessen, Giessen
beam: 5 in; 12.7 cm
case: 20 in x 10 1/8 in x 14 1/4 in; 50.8 cm x 25.7175 cm x 36.195 cm
ID Number
catalog number
accession number
Credit Line
Gift of University of Pennsylvania
Weights & Measures
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History


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