Full Details

Name and Model Number Pickett DeciPoint
Log Log Vector Model 2
Country of Origin USA
Date of Manufacture 1946-1954
Front Scales cube root cube root cube root DF CF T ST S CI C D sq root sq root
Back Scales 1/N1 1/N2 1/N3 1/N4 T T ST S CI C D N1 N2 N3 N4
Scale Length 25 cm (10 inches)
Type of Rule Slide Rule
Construction Magnesium, frameless cursor and adjustable end brackets
Area of Use Generic
Comment An early magnesium rule before switch to aluminum
Rarity RR
Donor Collection of Clay Castleberry
Match Number 298
(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.