| Name and Model Number | ALKU Slide Rule |
| Country of Origin | East Germany |
| Date of Manufacture | c. 1947 |
| Front Scales | A B CI C D |
| Back Scales | none |
| 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. |
| Rarity | RRR |
| Donor | Collection of Nathan Zeldes, Israel |
| Match Number | 246 |
| Thumbnail (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. |