Full Details

Name and Model Number Russian Slide Rule
System Hasselblatt
Country of Origin Russia
Date of Manufacture 1889
Front Scales cm / °, S, T, °, A [ B, B ] D, L, D, D, K \ inch
Back Scales None
Scale Length 20 cm
Type of Rule Slide Rule
Construction Paper on several layers of cardboard
Area of Use Generic
Comment A Soho type cardboard slide rule without a cursor. The cloth wallet has short instructions. Literature
Leipälä Timo: The Hasselblatt Slide Rule System”, Journal of the Oughtred Society, Vol. 13, 2004, Nr. 1, p. 60-63
Leipälä Timo: Arthur Hasselblatt and his 1889 side rule, at http://www.rechenschieber.org/Hasselblatt.pdf
Leipälä Timo & Shilov V.V.: Artur Gassel'blat i ego logarifmicheskaya lineika, Prilozhenie k zhurnalu Informatsionnye tekhnologii, 2012, Nr. 8, p. 14-20
Rarity RRRR
Donor Collection of Timo Leipälä
Match Number 398
(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.