Full Details

Name and Model Number Pickett N3-ES (Green)
Country of Origin USA
Date of Manufacture 1960 1962 Based on cursor and logo
Front Scales R1 R2 K A [ B ST S/Cos T1 T2 CI C ] D DI 3R1 3R2 3R3
Back Scales LL0+ 0.001/-0.001, LL0+ 0.01/-0.01, DF [ CF CIF Ln L CI C ] D, LL0+ 0.1/-0.1, LL0+ 1.0/-1.0
Scale Length 25 cm
Type of Rule Slide Rule
Construction Body Aluminum, Cursor Plastic
Area of Use Generic
Comment No green Pickett N3-ES is listed on Rod Lovett's
website eBay search as being sold on eBay since 1999.
If you know of another example of this rule, please contact us.
Rarity RRR
Donor Photo courtesy of Jodie Hobson
Match Number 383
(Click Picture for Details)

In conjunction with our 'donors' we assign a rarity rating to each item, based on the system devised by Herman van Herwijnen
(1929 - 2004), renowned Dutch collector, author, and creator of Herman's Archive, a collection of 5,000 slide rule images on CD.
• RR = Rare - 1 of 25 collectors has one; it may take a year to find an example in the marketplace.
• RRR = Very Rare - only a few known to collectors; may be several years before it comes up for sale.
• RRRR = Extremely Rare - a museum piece; unlikely that an example will come up for sale.