Full Details

Name and Model Number Pickett DECI LOG LOG
Vector Model 3
Country of Origin USA
Date of Manufacture c. 1947
Front Scales Root scales plus DF CF T S CI C D DI + 2 more root scales
Back Scales DF CF CI C D N1 N1 N3 N4
Scale Length 25 cm (10 inches)
Type of Rule Slide Rule
Construction Magnesium rule , aluminum end plates , frameless cursor
Area of Use Generic
Comment Early Pickett Log Log Vector Slide Rule
Rarity RR
Donor Collection of Clay Castleberry
Match Number 291
(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.