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
|
Thumbnail (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.
|