| 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
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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.
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