Full Details

Name and Model Number Unique Chemical Slide Rule
Country of Origin England
Date of Manufacture 1950s
Front Scales LU, A |B ,CI ,C (C includes molar masses) |D, LL
Back Scales none
Scale Length 10" (25 cm)
Type of Rule Slide Rule
Construction Plastic on bamboo?
Area of Use Chemical
Comment May contain historical data or dimensions etc.
If not used please leave blank.
Rarity RR
Donor Collection of Louis J. Gotlib, USA
Match Number 37
(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.