14 sec Brass Log-glass
Hourglass, Glass and Brass, used as Log-glass with 14 sec duration. In the lid we find the inscriptions 1827 and 14. Can be closed by rotation of the inner cylinder. Orange collared Silicate.
Type of object:
Timekeeper & Sundial & Compass & Barograpf
Time period:
Britain rules the waves + France
Place:
Plymouth
Date:
1827
Maker / Author:
Cox and Coombes?
Publisher / Printer:
Dimensions:
6.3 x 2.4 (diam) cm
Material:
Brass and Glass, beige Sand
Graduation:
14 seconds
Inscription:
1827 inside lid and 14
Provenance:
From an Hydrografic sextant box, including an artificial horizon: Cox & Coombes from Plymouth, sold and certified in 1870
References:
Delalande Hourglasses pag 380
Description
Hourglass, Glass and Brass, used as Log-glass with 14 sec duration. It times the period for measuring the shipsspeed with the classic shipslog,, measuring the speed in knots, tht passed the hand of a sailor in 14 seconds. In the lid we find the inscriptions 1827 and 14. Can be closed by rotation of the inner cylinder. Orange collared Silicate.
Provenance: From an Hydrografic sextant box, including an artificial horizon: Cox & Coombes from Plymouth, sold and certified in 1870
Additional information
