Full Details

Name and Model Number Russian Pilot's Slide Rule NL-10m
Country of Origin Russia
Date of Manufacture Est. 1960-1970
Front Scales Pressure, temperature, and altitude and others
Back Scales Same
Scale Length 25 cm
Type of Rule Slide Rule
Construction Paint on a light white wood aluminum end brackets plastic cursor
Area of Use Aviation
Comment Difficult to read due to Russian characters
Rarity RR
Donor Collection of Clay Castleberry
Match Number 339
(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.