An instrument used to reduce the scale of drawings. Methode de lever les plans et les cartes de terre et de mer : avec toutes sortes d’instrumens & sans instrumens. By Jacques Ozanam. 1750. Plate XV, page 236. Call Number TA544 .O97 1750
Photo Category: Treasure - Geodesy - Instruments
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Added On | 17th October 2015 |
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