Hagger Theodolite
- Description
- This theodolite belonged to Smith College, but was made well before that school was established. The "Hagger Maker Baltimore" signature refers to Benjamin K. Hagger, an instrument maker who worked in Baltimore during the period 1816–1824, and who later went into partnership with his eldest son. The horizontal circle and vertical arc are silvered, graduated every 30 minutes, and read by verniers to single minutes.
- Object Name
- theodolite
- maker
- Hagger, Benjamin K.
- Measurements
- overall: 14 in; 35.56 cm
- horizontal circle: 8 1/2 in; 21.59 cm
- vertical arc: 8 in; 20.32 cm
- needle: 4 1/2 in; 11.43 cm
- telescope (closed): 12 1/4 in; 31.115 cm
- hanging level: 5 1/4 in; 13.335 cm
- place made
- United States: Maryland, Baltimore
- ID Number
- 1980.0098.03
- accession number
- 1980.0098
- catalog number
- 1980.0098.03
- subject
- Measuring & Mapping
- Surveying and Geodesy
- See more items in
- Medicine and Science: Physical Sciences
- Surveying and Geodesy
- Data Source
- National Museum of American History, Kenneth E. Behring Center
- Additional Media
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