Full Details

Name and Model Number Fuller Calculator s/n 633
Early 1880s Stanley
Country of Origin England
Date of Manufacture c. 1880 -1885
Front Scales Spiral C scale
Back Scales None
Scale Length 12.7-m
Type of Rule Cylinder
Construction Spiral scale on paper glued to a hardboard cylinder. The scale tube slides on a wooden cylinder affixed to a wooden handle. Two long brass index pointers facilitate calculations.
Area of Use Generic
Comment The Fuller Calculator is not rare, but this is a rare example of the Fuller in its first years. Serial number 633 was issued before 1885, within 5 years of when production began and at least 10 years before K&E listed the Fuller in its catalogs. I purchased this Fuller in England.
Rarity RRR
Donor Collection of Ed Chamberlain
Match Number 156
(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.