Pickett Model N 3-ES Duplex Slide Rule

Pickett Model N 3-ES Duplex Slide Rule

<< >>
Usage conditions apply
This duplex linear slide rule, made of aluminum with an “eye saver yellow” coating, has numerous scales that are 10 inches long. The front has on the top of the base two square root scales, a K scale, and an A scale. At the bottom of the front of the base are a D scale, a D1 scale, and three scales for cube roots. The front of the slide has B, ST, S, two T, C1 and C scales. The back of the base has at the top two LL0 and two LL1 scales, as well as a DF scale. At the bottom of the back of the base are a D scale, two LL2 scales and two LL3 scales. On the back of the slide are CF, C1F, Ln, L, C1 and C scales. The indicator is made from plastic and held together with metal screws. The leather case has a hook on the back which connects to a belt strap. A copper-colored plate on the front of the case reads: BILL NYE. A pen mark inside the flap reads: Bill Nye.
Donor Bill Nye acquired the slide rule as a gift from his parents over winter break in 1971. He used it from 1971 until 1975, in high school and in engineering school at Cornell University. Nye went on host "Bill Nye the Science Guy," a Public Broadcasting System television show for children.
This slide rule was copyrighted in 1960. The logo on it is that used by Pickett from 1964 until 1975.
Compare 2016.0283.01 and 2009.0019.01.
Currently not on view
Object Name
slide rule
calculating rule
date made
Pickett Industries
place made
United States: California, Santa Barbara
Physical Description
metal (rule, screws, snaps, nameplate material)
plastic (slide material)
leather (case material)
overall: 4 cm x 33.2 cm x 8 cm; 1 9/16 in x 13 1/16 in x 3 5/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Bill Nye
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Slide Rules
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object