|Name and Model Number||ALKU Slide Rule|
|Country of Origin||East Germany|
|Date of Manufacture||c. 1947|
|Front Scales||A B CI C D|
|Scale Length||15 cm|
|Type of Rule||Slide Rule|
|Construction||Made entirely of glass plates coated with paper and thin cardboard, with a celluloid sheet cursor.|
|Area of Use||Generic|
|Comment||A very unusual slide rule in that the body is made of paper-coated glass plates.
Made by ALKU Rechenschieberfabrik, Neueibau, Germany.
For more photos and info see http://www.nzeldes.com/HOC/ALKU.htm
I know of two other collectors who own one of these, Klaus Przadka and Klaus Greis, both in Germany.
|Donor||Collection of Nathan Zeldes, Israel|
(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.|