Laurie and Whittle
1794

Antique Tide Calculator for the North Sea, Bay of Biscay, and the English Channel

SOLD

A new and correct Tide-Table for the British Channel, showing the true flowing of the tide by the shore and its true run in the offing, for every day of the Moon's Age on the coasts of England, Ireland, Scotland, Holland, Flanders and France.

DESCRIPTION: SOLD

Fine antique volvelle for calculating the time of tides at numerous locations in the UK and on the coast of Europe. A volvelle or wheel chart is a type of calculator constructed from paper. Essentially, a very early and simple analog computer. With a rotating dial for Locations and Minutes. Outside the rotating dial, are fixed a 30 Day Circle and a 12 Hours Circle and Names of Places including Lizard Point, The Coast of Flanders, Tinmouth Bar, Flamborough Head, Calais, the River of Bordeaux, and many more.

On this scarce device the instructions read
"To make use, you must place the Flower-de-Luce, or Index, to the Day of the Moon's age, on the circle of days and the Arrow, at the end of the line wherein the name is written, will point to the time of the Tides Flowing or Running that day, on the circle of hours."
Published by Laurie & Whittle, 53 Fleet Street. March 12, 1794.

CREATOR: Laurie and Whittle

PUBLICATION DATE: 1794

GEOGRAPHIC AREA: United Kingdom

BODY OF WATER: N/A

CONDITION: Good.  On heavy paper. With apparent original center-pivot. No major issues. Narrow margins at sides.

COLORING: Very attentive and accurate hand-color, applied meticulously by an expert colourist in the U.K.

ENGRAVER: 

SIZE: 16 " x 20 "

ITEM PHYSICAL LOCATION: 0

PRICE: $

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