Steam Engine Demonstration Model for Projection by Max Kohl Germany antique meteorological instrument A small wick would be

A small wick would be placed over the wet thermometer bulb and continually soaked by the water feeding up the wick from the bucket below

It is certainly the first example executed in gold that I have had the pleasure to find and remains in complete working order

a rare survivor of this much sought after recording rain gauge by a very good London maker

The rim below the lion is marked with

Steam Engine Demonstration Model for Projection by Max Kohl Germany antique meteorological instrument A small wick would beFor sale, an early twentieth century steam engine educational demonstration model for projection by Max Kohl, Germany. Appearing in Max Kohls voluminous catalogues of the period, this rare and unusual demonstration model is comprised of a marble base engraved to the maker, Max Kohl AG Chemnitz with a brass cut away model of the inner workings of a steam engine secured to the base. A painted cast iron pillar to the side supports the operating handle