Pickett N3-T Duplex Slide Rule
date: label: date made
content: 1964-1975
name: label: maker
content: Pickett Industries
notes: label: Description
content: This aluminum duplex slide rule is coated with "traditional" white plastic. The indicator is flat and made from nylon (hence the "N" in the model number). The front of the rule has two square root scales; K, A, B, ST, S, T, CI, C, D, and DI scales; and three cube root scales. The back of the rule has LL0, LL1, DF, CF, CIF, Ln, CI, C, D, LL2, and LL3 scales. Markings on the rule are described for the nearly identical 2009.0019.01. The rule fits in a burgundy leather case printed with the Pickett logo in gold. A strap and hook on the back attach the case to a belt.
label: Description
content: Pickett was making a Model 3 slide rule as early as 1954, but the scales were arranged differently and the front of the slide had the tables found on Model 2. (See 1979.0601.02.) The logo on this instrument was used between 1964 and 1975. The shape of the indicator and the shape of the metal end pieces are consistent with this date range.
label: Description
content: For related documentation, see 1980.0097.05 and 1980.0097.06.
label: Description
content: References: Dieter von Jezierski, <i>Slide Rules: A Journey Through Three Centuries</i>, trans. Rodger Shepherd (Mendham, N.J.: Astragal Press, 2000), 75–76; <i>Pickett All-Metal Slide Rules</i>, catalog 164-A (Chicago: Pickett & Eckel, Inc., 1954), 11.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Santa Barbara
topic: label: Subject
content: Rule, Calculating
label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Slide Rules
creditLine: label: Credit Line
content: Gift of Terry M. Sachs
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1980.0097.01
label: catalog number
content: 1980.0097.01
label: accession number
content: 1980.0097
objectType: label: Object Name
content: calculating rule
label: Object Name
content: slide rule
physicalDescription: label: Physical Description
content: aluminum (overall material)
label: Physical Description
content: plastic (laminate material)
label: Physical Description
content: leather (case material)
label: Physical Description
content: nylon (cursor material)
label: Measurements
content: overall: 2 cm x 33 cm x 8 cm; 25/32 in x 13 in x 3 5/32 in