|Name and Model Number||Soviet KLPZ 250-14|
|Country of Origin||USSR|
|Date of Manufacture||1976 - 1978|
|Front Scales||T1, K, A [B, CIF, CI, C] D, ST, S|
|Back Scales||LL3, LL2, LL1, L plus tables of constants and examples|
|Scale Length||25 cm|
|Type of Rule||Slide Rule|
|Area of Use||Generic|
|Comment||Made in Soviet KLPZ Factory for Calculating Instruments.
LOLD (Log-log duplex)slide rule (Modified Darmstadt).
This rule modifies the typical Darmstadt configuration by eliminating the P-scale
and adding a CIF-scale the front of the slide. The log-log scales move from slide
to the back upper stator.
|Donor||Collection of Marion Moon, California|
(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.|