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Dividing engine for making sextants and octants
Made late 1700s, modified 1800s
Male alms box figure from Bethlem Hospital, England, 1671-1681
Psychology, Psychiatry & Anthropometry
Silver medal commemorating the deliverence of Hamburg from plague, Germany, 1714
The description and use of two arithmetick instruments : together with a short treatise, explaining and demonstrating the ordinary operations of arithmetick : as likewise, a perpetual almanack, and several useful tables ...