Full Details


Name and Model Number Farmarís Publican Rule
Country of Origin England
Date of Manufacture 1898 - 1905
Front Scales various
Back Scales various
Scale Length 12.25 in
Type of Rule Slide Rule
Construction Boxwood with brass end plates
Area of Use Brewing
Comment Proofing rule for pub owner.
Publican calculations for proof and profit.
Believed to be the precursor of Farmarís Publican No. 1.
Rarity RRR
Donor Collection of Clay Castleberry
Match Number 238
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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.