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# Lewis and Clark Expedition Pocket Compass

National Museum of American History

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                      -     Object Details- Clark, William
- Whitney, Thomas
- Description
- In the spring of 1803, Meriwether Lewis began to purchase scientific and mathematical instruments for a pending expedition into the northwestern region of North America. Among the items he purchased from Philadelphia instrument maker Thomas Whitney were three pocket compasses for $2.50 each, and this silver-plated pocket compass for $5. It has a mahogany box, a silver-plated brass rim that is graduated to degrees and numbered in quadrants from north and south, a paper dial, two small brass sight vanes, and a leather carrying case. Whether Lewis purchased the silver compass for himself or intended it as a special gesture for William Clark is not known.
- Following the instructions of President Thomas Jefferson, the Corps of Discovery, under the leadership of Lewis and Clark, ascended the Missouri River in May 1804 to obtain detailed information on the natural resources of the region, to search for a northwest passage, and to make official diplomatic contact with Indian leaders.
- By the time they returned to St. Louis in September 1806, few of the instruments that were purchased for the trip had survived the journey. The pocket compass, however, was kept by Clark as a memento. He later gave the compass to his friend, Capt. Robert A. McCabe, whose heirs donated it in 1933 to the Smithsonian Institution.
- Credit Line
- Mary McCabe
- ca 1804
- ID Number
- PL.038366
- catalog number
- 38366
- accession number
- 122864
- Object Name
- compass, pocket
- Physical Description
- wood, mahogany (overall material)
- brass (overall material)
- silver plate (overall material)
- Measurements
- closed: 3 1/2 in x 3 1/2 in x 1 1/2 in; 8.89 cm x 8.89 cm x 3.81 cm
- Place Made
- United States: Pennsylvania, Philadelphia
- Related Publication
- Kendrick, Kathleen M. and Peter C. Liebhold. Smithsonian Treasures of American History
- See more items in
- Political and Military History: Political History, General History Collection
- Government, Politics, and Reform
- Military
- Science & Mathematics
- Transportation
- Measuring & Mapping
- Exhibition
- American Presidency
- Exhibition Location
- National Museum of American History
- National Museum of American History
- related event
- Lewis and Clark Expedition
- Record ID
- nmah_500256
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/ng49ca746a3-020f-704b-e053-15f76fa0b4fa
  CC0Creative Commons - No Rights Reserved iconUsage Conditions Apply>download icon>          This image is in the public domain (free of copyright restrictions).  You can copy, modify, and distribute this work without contacting the Smithsonian.  For more information, visit the Smithsonian's Open Access page.        International media Interoperability FrameworkIIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.View manifestView in Mirador ViewerExpand to view image×                PreviousNext             Footer logo      
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