Biram Anemometer or mining air meter
Biram's amemometer or air meter typically used in the mining industry stamped "made in England" with a brass circumference finished in black. Early twentieth century. On/off lever and reset button works perfectly but sweep hand resets at "9" not zero (This could be easily corrected, if necessary by removing the sweep hand and replacing at the zero point, but it makes no difference to the functioning of the instrument.Diameter 4.25" (11 cm). This item comes in its original velvet lined leather carrying case.
Price includes carriage to anywhere in the world.
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