Morocco leather case for three mercury thermometers, Germany, 1876
Morocco leather case for three mercury thermometers by W. Haak, Thuringia, Germany, 1876.
Three mercury thermometers in morocco leather case [-4º to 101ºC, -4.6º to 103ºC, and -30º to 49ºC] by W. Haak, Thuringia, Germany, 1876.