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28 sec Wooden LOG GLASS

Classic wooden hourglass, running 28 seconds

Type of object:

Timekeeper & Sundial & Compass & Barograpf

Time period:

Britain rules the waves + France

Place:

probably England

Date:

1800

Maker / Author:

Not Known

Publisher / Printer:

idem

Dimensions:

​

Material:

Wood, glass, filled with leadpowder

Graduation:

28 sec, but in reality 25 sec

Inscription:

4 circles and maybe XXVIII

Provenance:

probably England

References:

Greenwich: Hour-glass | Royal Museums Greenwich (rmg.co.uk)
Delalande Sablier Hourglasses pag 30

Image by Austin Neill

Description

classic wooden hourglass, running 28 seconds to be used with shiplog to measure the speed of a ship.

Additional information

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