Semi Circumferenter 1787 - 1790

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"Semi Circumferenter" is a 1787-1790 wood and brass protractor made by John Potter (1746-1818). This instrument, a type of surveying tool, features a semicircular scale marked in degrees. The delicate craftsmanship and inscription on the protractor, "J. Potter, Broxfield," highlight the maker's attention to detail and craftsmanship. "Semi Circumferenter" is a historical artifact that demonstrates the ingenuity and precision of eighteenth-century instrument making.