Object Details
Description
This is a photocopy of a photograph of the instrument for calculating all trigonometric functions co-invented by Frank Crampton. It includes a small vernier which is missing from the object. Also included is a business card of the donor.
For related object, see MA.335540.
Location
Currently not on view
Credit Line
Gift of Esther L. Crampton
ID Number
MA.317954.06
accession number
317954
catalog number
317954.06
Object Name
sheet
Physical Description
paper (overall material)
Measurements
overall: 21.5 cm x 28 cm; 8 15/32 in x 11 1/32 in
place made
United States: District of Columbia
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_904750