Full Details

Name and Model Number Keuffel & Esser ANALON
Country of Origin USA
Date of Manufacture 1967
Front Scales V2 V1/2 A [B U1/2 U-1 C] D V V-1
Back Scales Descriptions of the 24 constants that appear on the front scales.
Scale Length 25 cm
Type of Rule Slide Rule
Construction Closed body rule made of injection molded plastic
Area of Use Other
Comment This rule only appears in the 1967 K&E Catalog. The rule was dropped from production when there was a production problem and many complaints about the manual being too complicated. Only about 400 were delivered to the public. The back of the rule bears the imprint Engineering- Science Analysis Slide Rule. The 24 constants that appear on the front scales are for magnetism, electricity, physics, etc.
Rarity RRR
Donor Collection of Clark McCoy
Match Number 222
(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.