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 ...
Recently discovered, the earliest dated English scientific instrument is going under the hammer at Christie's auction house in London on Wednesday. The palm-sized copper-alloy "horary quadrant," which ...
Added t.p. in French. Preface in French and English, text in French or English.
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