Leads and Needle Points in Case
- Description
- This 1-3/4" cylindrical metal case holds three pencil leads and three needle points for dividers. Leads and needle points were needed for drawing compasses and mechanical pencils used in engineering drawing; one often found a case like this in a set of drafting instruments. William J. Ellenberger (1908–2008) owned these objects. For his biography, see 1981.0933.25.
- Location
- Currently not on view
- date made
- ca 1940
- place made
- United States
- Physical Description
- steel (overall material)
- lead (overall material)
- metal (overall material)
- Measurements
- overall: 4.8 cm x .6 cm x .6 cm; 1 7/8 in x 1/4 in x 1/4 in
- ID Number
- 1981.0933.26
- accession number
- 1981.0933
- catalog number
- 1981.0933.26
- Credit Line
- Gift of William J. Ellenberger
- subject
- Mathematics
- Drafting, Engineering
- Drawing Instruments
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Pens and Pencils
- Data Source
- National Museum of American History
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