This Rutherford-type alcohol-in-glass thermometer is mounted on a flat metal plate marked "H. J. GREEN N.Y." and "No. 2352" and "SIGNAL SERVICE U.S. ARMY." A white porcelain strip on the plate is graduated every 5 degrees Fahrenheit from 65 to 115. The stem is marked "U.S. 2352" and graduated (but not numbered) every degree. The whole is enclosed in an outer glass tube. It dates from the period 1885-1890 when Henry J. Green was working in New York.
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