Protractor
ca. 1770 – 1800
This protractor was used for map making. It includes a ruler that enables the mapmaker to create a map "to scale.".
Brass. L 6.6, W 12.3 cm
Valley Forge National Historical Park, VAFO 82905
ca. 1770 – 1800
This protractor was used for map making. It includes a ruler that enables the mapmaker to create a map "to scale.".
Brass. L 6.6, W 12.3 cm
Valley Forge National Historical Park, VAFO 82905