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"Mountain barometer" (a hypsometer), invented and
Horizontal hypsometer by Elliott, 1858.
Marine hypsometer, in case with two reservoirs, thermometer case, cylinder, cable and one of two thermometers. By Grossay, Germany, marked M 153/obs. Thermometer is graduated in millibars, and marked Nr 76481, 3541 15/DXR/2.45 RH J in triangle, and "Nur fur Marfine-Hypsometer"
Marine hypsometer, in case with two reservoirs, th
Marine hypsometer by Grossay, Germany, with thermometer Nr 76483, graduated in millibars, and marked 3542 15/DxR/2.45, RHJ in triangle, and "Nur fur Marine Hypsometer"
Hypsometric apparatus by Grossay, Germany, marked with eagle, swastika, and M 173/obs. Carrying case, heater tank, electric light bulb and cable, insulated sleeves. Incomplete. 1930's(?)
Hypsometer with carrying case by Elliott Brothers, 30 Strand, London. Marked 5, with arrow. Mercury thermometer stem broken. Mid 19th century
Hypsometer with carrying case by Elliott Brothers,
Hypsometer by Elliott Brothers, ex Edinburgh, passed to the Met Office in 1964, cased.
Hypsometer by Elliott Brothers, ex Edinburgh, pass