US$ 90.00
Toll houses on Southwark Bridge
Street scene including horse-drawn carriages and figures
chemist and chemical engineer
gazing forward
West Ham United Players Overseas visit to Israel
Robert Bate's hydrometer border post Toll houses on Southwark BridgeA hydrometer with hinged wooden case manufactured by Robert Bate. Hydrometers are used to measure the density of liquids. The weighted end is placed into a liquid and the hydrometer sinks to a certain level. The specific gravity can then be read from the liquid level on the vertical scale. ca. 1836
US$ 90.00
US$ 67.50
US$ 140.00
US$ 11.00