Full Details

Name and Model Number Faber Rechenschieber
w decimal indicator
Country of Origin Germany
Date of Manufacture c.1899 - 1903
Front Scales A B C & D scales, lower edge cm scale, beveled edge cm scale
Back Scales S L & T on reverse of slide; inch & meter scales on back.
Scale Length 50 cm
Type of Rule Slide Rule
Construction Boxwood with scales printed on celluloid laminate; wooden springs for slide friction control; engraved scales; decimal keeping mnemonics at ends of D scale; cm scale in well. With decimal indicating cursor. Mahogany wood storage box.
Area of Use Generic
Comment Early decimal keeping slide rule. Two Faber DRGMs on lower stator; 99350 for the wooden springs & 116832 for the decimal registering indicator.
Rarity RR
Donor Collection of Ed Chamberlain
Match Number 177
(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.