|Name and Model Number||A. M. Maurand |
|Country of Origin||France|
|Date of Manufacture||ca. 1865|
|Capacity||Simple calculations and conversion of units|
|Construction||Brass box with glass lid and hand colored cardboard tables|
|Area of Use||Other|
|Comment||Universal Ready Reckoner.
Awkward to handle.
Also mentioned in Comptes Rendus des Séances de l'Académie des Sciences. Paris. 61, 425.
|Donor||Photo from a collection in Germany|
(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.|