Fine late 18th century large graphometer on ebonized stand
Stock Number: FG_22001
£850
Graphometer or semicircle is a surveying instrument used for angle measurements. It was used by cartographers and hydrographers to measure horizontal and vertical angles, similar to the later theodolite, which evolved from it. The form was introduced in Philippe Danfrie's, Déclaration de l’usage du graphomètre (Paris, 1597). During the 19th-century, graphometers had telescopic rather than open sight alidades, later developed into the theodolite
Circa
1780
Country of manufacture
France
Description
The fine unsigned ca. 1780 graphometer offered here is preserved in excellent condition. Whilst flat, the overall height is 33cm, to the top of the arms. Width is 22cm, depth is 19cm. Base diameter 16cm approx.
NOTE TO BUYERS: Until the end of August, I will be staying in Italy (to end a half year’s sabbatical). Previous attempts to ship items to buyers from outside the EU often faced the (in)famous service of the Italian post. Therefore, if you live outside the EU Schengen zone and wish to buy an item listed here, please do, but be aware that shipping will be made to you during the first week of September. Buyers from within the EU will receive their instruments as usual.
I am sorry for this inconvenience,
Yuval (Gilgamesh)
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Dealer information
Gilgamesh
Gilgamesh is a mythological hero from the ancient cultures of West Asia, who embarked on a journey in search of youth and eternal life. Fleaglass Gilgamesh is located in Israel. As an Emeritus Professor of archaeology, I have spent over four decades researching the material culture of the distant past, utilizing the microscope as a powerful research tool. For the past thirty years, I have collected microscopes from the first 300 years of this remarkable instrument's history and have studied the cultural context of their use.
What started as a passion has turned into an obsession, and I now cultivate a nearly unique collection of historical microscopes from West Asia. From time to time, I offer surplus or particularly interesting items from my collection for sale. I am happy to provide free advice to any interested collector. If you would like to receive photos, information, and bibliographic references, or if you wish to discuss the details of the items I have for sale, please feel free to reach out.
