One side of the device was used to tell the date of Easter Sunday. Christie's Images LTD. 2023 Billed as the “earliest dated English scientific instrument,” a 700-year-old medieval device used to tell ...
A medieval scientific instrument once used for telling the time by tracking the position of the sun is being offered by Christie’s London. Carrying an estimate of £100,000–£150,000 ($125,000–$188,000) ...
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