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.
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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