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'Equation of Time' |
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. There are only four times a year when a sundial indicates time exactly to your watch. This difference between sundial time and clock is termed the 'EQUATION OF TIME'. I have carefully plotted the equation of time to produce a solid brass engraved plate 2 1/2 inch x 3 3/4 x 1/8 thick. Supplied pre-drilled with number 4 size raised countersunk brass screws. The equation of time was previously better known than it is now, as in centuries gone a mechanical timekeeper would be set by means of a sundial in conjunction with the time equation, thereby indicating the appropriate time difference. Accurately plotted, carefully engraved. An unusual though highly relevant accessory for any sundial. I only supply this direct, price £150.00 each. including 1st Class Mail in the UK and small packet airmail for overseas customers. A full invoice issued to cover the transaction, money back guarantee. E&OE copyright 2024 © Richard Kell |
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