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Tidal and Nocturbal Abacuses H31

£53,86
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Reference: 8400000068505
 

Current replica of the instruments used at the end of the 16th century.



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On one side an abacus used for the calculation of tide schedules and on the other an nocturlabio used to calculate the hour at night thanks to the fixed position of the stars in the sky.

Made of sturdy metal and includes a wooden foot for its support


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