Object Details
- Description
- This small, one-sided slide rule is made of wood. It has a white plastic layer on the front of both the base and the slide. The indicator is made from plastic. The base bears A, D, and K scales. The slide bears B, CI, and C scales. The scales are approximately 4-1/8 inches long. The slide is slightly longer than the base. The back of the slide rule is bare boxwood and has no scales.
- The instrument is marked on the slide: MADE IN (/) ENGLAND. It closely resembles the 4-inch Jiffy slide rule made by Unique Slide Rule Company of Brighton, England. Unique sold slide rules from about 1923 to 1975.
- References: Peter M. Hopp, Slide Rules: Their History, Models, and Makers (Mendham, N.J.: Astragal Press, 1999), 229–231; "British Slide Rules," The Slide Rule Museum, http://sliderulemuseum.com/British.htm; David M. Riches, Mathematical Instruments: A Private Collection, http://www.mathsinstruments.me.uk/page14.html; Peter Hopp, Colin Barnes, and John Knott, "Unique Slide Rules," Journal of the Oughtred Society 6, no. 1 (1997): 32–44.
- Location
- Currently not on view
- Credit Line
- Gift of William E. Gilbert
- ID Number
- 1995.0087.02
- accession number
- 1995.0087
- catalog number
- 1995.0087.02
- Object Name
- calculating rule
- slide rule
- Physical Description
- plastic (laminate material)
- wood (overall material)
- Measurements
- overall: .8 cm x 12.3 cm x 3.3 cm; 5/16 in x 4 27/32 in x 1 5/16 in
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Slide Rules
- National Museum of American History
- Subject
- Mathematics
- Rule, Calculating
- Record ID
- nmah_690052
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a5-1456-704b-e053-15f76fa0b4fa
