Log Timer, Vaartmeter in the form of a hourglass to be stopped. The upper part contains the hourglass bottle in a round brass sleeve. With a lever, this bottle can be opened, so that the sand can run to the lower part, where a long sight glass with a scale is fitted. The hourglass is stopped when a measurement is finished., Rasmus Dekker (mentioned on object), Amsterdam, c. 1795 - c. 1812, wood (plant material), brass (alloy), glass, sand, h 41.3 cm × d 8.6 cm
Keywords:
Log Timer, Vaartmeter, form, hourglass, stopped, upper part contains, hourglass bottle, round brass sleeve, lever, bottle, opened, sand, run, lower part, long sight glass, scale, fitted, measurement, finished, Rasmus Dekker, mentioned, object, Amsterdam, c, 1795, 1812, wood, plant material, brass, alloy, glass
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