Patent model for Riley Root, “Level,” U.S. Patent 26,621 (Dec. 27, 1859). Riley Root (1795-1870) was a teacher, surveyor, inventor, and early settler of Illinois. This brass surveyor’s level has an arc with a 3-inch radius, and is graduated by degrees. The inscription reads "Riley Root."

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: PH.308913Catalog Number: 308913Accession Number: 89797Patent Number: 26,621

Object Name: levelObject Type: Patent Model

Measurements: overall: 5 in x 14 in x 4 1/4 in; 12.7 cm x 35.56 cm x 10.795 cmoverall: 5 in x 14 in x 4 1/8 in; 12.7 cm x 35.56 cm x 10.4775 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ad-4675-704b-e053-15f76fa0b4fa

Record Id: nmah_1393300

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