| Name and Model Number | Addiator Quick Multiplikator |
| Country of Origin | Germany |
| Date of Manufacture | 1920s? |
| Capacity | 2 x 4 places |
| Construction | Brass plate |
| Area of Use | Other |
| Comment | For multiplication.
The device gives all partial products to multiply two four digit numbers, but unfortunately not in their proper positions. Up to now a mention in historical literature is not known. |
| Rarity | RRR |
| Donor | Photo from a collection in Germany |
| Match Number | 76 |
| 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. |