|Name and Model Number||Slaterís rule|
|Country of Origin||U.K.|
|Date of Manufacture||~1850 to early 20th century|
|Front Scales||Soho slide rule scale variant|
|Back Scales||Tables of weaving facts and figures|
|Type of Rule||Slide Rule|
|Construction||Boxwood and brass|
|Area of Use||Other|
|Comment||A 2-foot, 2-fold rule used for textile and weaving calculations.
Slaterís rule has an incredible collection of information and instructions
engraved on the two sides (four legs) of the 2-2 rule, and examples are
known from a number of midlands makers.
This example by Gleave of Manchester dates it to about 1890, however it
has been stated that the majority come from either Preston or Rabone.
|Donor||Collection of an English gentleman|
|RR||= Rare -- 1 of 25 collectors has one; it may take a year to find an example in the marketplace.|
|RRR||= Very rare -- only very few known to collectors; may take several years before one comes up for sale.|
|RRRR||= Extremely rare -- a museum piece; unlikely that an example will ever come up for sale.|