Vintage German A. W. Faber Castell Slide Rule - No. 1/54 DARMSTADT W Custom Case




Item History & Price

Information:
Reference Number: Avaluer:18853417UPC: Does not apply
Original Description:
Ready To Use!!! Ready To Collect!!!
FABER-CASTELL Slide Rule
No. 1/54 DARMSTADT
“MADE IN GERMANY”This vintage A. W. Faber-Castell 11-1/2 inch (Overall) , Open Frame Wood Core Slide Rule No. 1/54 Darmstadt (Darmstadt – Named After A Technical College Located In Darmstadt) with all its parts including the wood rule with laminated scale surfaces, moveable reversible slide, and moveable “open-view” plexiglass cursor, is in splendid condition. References suggesting a manufac...ture in the 1950s, this slide rule has been carefully used and stored allowing it to be very clean and free of any distracting smudges, unsightly scratches, or etched or inked markings. The quality construction of this Faber-Castell wood slide rule is designed with metal inserts permitting its tolerance towards the effects of climatic conditions along with providing stability and elasticity. The slide rules are noted for their extraordinary hardness and smooth surface allowing the desired “slide” without binding. There are no original instructions for this A.W. FABER-CASTELL 1/54 DRAMSTADT   Slide Rule. Note that some instructions were found on the Internet at: https://archive.org/stream/instructionforca00fabe/instructionforca00fabe_djvu.txt NOTE ON CONDITION
eBay bidders who are interested in this  A.W. FABER-CASTELL 1/54 DRAMSTADT   Slide Rule should be aware that the body, slide, and sliding glass cursor components are in absolutely excellent condition. There are no signs of extreme use, personal identification, or pencil/ink marks on the surface. Rather, the slide rule may have been owned and used by a professional who purposely made the desired calculations and afterwards, stored this slide rule in its two-part green cardboard storage holder. There are no instructions with this slide rule. 

The overall existing state, operable condition, and the previous owner markings were considered in making appropriate value adjustments in setting the minimum bid amount for this auction.

eBay bidders are encouraged to fully examine all pictures and review this input before making any decision to participate in this auction.



  









The cursor provides an unimpeded view of the entire system of rule graduations. As a fantastic tool, this type of vintage slide rule was a fantastic calculator made popular by electrical and mechanical engineers, physicists, chemists, mathematicians, technicians, scientists, and students.
 
The rule body “slide channel” reveals the “A.W. FABER-CASTELL 1/54 DRAMSTADT   Made In Germany” identity marking. Scales are the 10 inch rule, L, K, A, {Slide Front B, CI C or D} D, P) SIN, TAN), (Slide Back LL1, LL2, LL3). Note that only the “D” and “P” scale is labeled on this early model. It comes complete with its custom green FABER-CASTELL slip-on two-part cover cardboard closure case. There are no instructions. Mathematical formulae (Powers of e, Hyperbolic Logarithms, Powers, Roots) are diagramed on the back of the rule.  

The scales (see table below) represented on this A. W. FABER CASTELL DARMSTADT No. 1/54 are relative to the C/D Scale. The scales on this slide rule (Body Front/Slide Front/Back) are the following: B/S Scales Value Description BF inches 10 Measurement rule in increments of 1/32nds, 1/16ths, 1/8ths, 1/4ths, ½, and 1 inches up to a total of 10 inches. BF L Log X Mantissa Scale. Logarithms to base 10. Linear Scale Used To Determine The Log Values (Mantissa Only) Of Other Scales. Commonly Used In Conjunction With The C & D Scales To Determine The Mantissa Of Logarithms.   BF K X3 Cubed Scale Of Cubes On The Body. Used With The C & D Scales To Determine Cubes Or Cube Roots.   BF A X2  Squared Scale Of Squares On The Body. Typically Found On The Top Stator. Used With The D Scale On The Bottom Stator.  The Square Of A Number On The D Scale Can Be Read On The A Scale. In Like Manner, Square Roots Of Numbers On The A Scale Can Be Read On The D Scale.   SF B X2  Squared Scale Of Squares On The Body. Typically Found On The Top Stator. Used With The C Scale On The Bottom Stator.  The Square Of A Number On The C Scale Can Be Read On The A Scale. In Like Manner, Square Roots Of Numbers On The A Scale Can Be Read On The C Scale.   SF CI 1/X  Movable reciprocal basic scale for simple and compound multiplication of division in conjunction with C and D.   SF C or D X Fundamental Scale On The Slide. Most Calculations With Other Scales Are Done In Conjunction With The D Scale.   BF D X  Fundamental Scale On The Slide. Most Calculations With Other Scales Are Done In Conjunction With The C or D Scale.   BF P Y =SQRT(1-X2) Pythagorean scale for solving of formula y = Square Root of (1-X2), in conjunction with the C and D scales for vectorial calculations.   BF S Sin/Cos This S Scale Used To Read Sine And Cosine Functions Of Angles And Is Graduated In Degrees And Decimals Of Degrees. With The Cursor Set At An Angle On The S Scale, Graduated From Left To Right, 5.74° To 90° Degrees, The Sine Of The Angle Is Read On The C Or D Scales. Graduated From Right To Left, The Cosine Of An Angle Is Read On The C Or D Scales.   BF T Tangent/ Cotangent Used    This T Scale Used To Read Tangent/Cotangent Values On The C Or D Scales. For Tangent Values Increasing Left To Right, 5.7° To 45° Degrees. For Cotangent Values Increasing From Left To Right, 45° To 85.5° Degrees.   SB LL1 e0.01X Log Log Scales: Provides For Loge (0.01X) For X Values Starting At 1.01 And Ends At 1.12.     SB LL2 e0.1X Log Log Scales: Provides For Loge (0.1X) For X Values Starting 1.12 And Ends At 3.2.   SB LL3 eX Log Log Scales: Provides For Loge (X) For X Values Starting At 2.5 And Ending At 108.    Background. A. W. FABER- CASTELL slide rules were made primarily in Germany (plus Switzerland and Austria), and are known for their design and elegance, and clearly was one of the prominent European slide rule makers. Faber-Castell sold a wide range of models, with many of their early offerings made of Swiss pearwood or boxwood with celluloid facings. Later rules were made out of Geroplast and featured some of the most useful and advanced features ever seen on slide rules. Always the innovator, Faber was often copied but rarely duplicated by other manufacturers and remain among the most sought after by collectors. Organized by specific sale groups, the slide rules were produced in different construction styles starting with the 1/series for full size 10 inch/25cm wood and the second number “54” indicating the specific scale set.

References & Acknowledgements: SLIDE RULES – Their History, Models, and Makers, by Peter M. Hopp. Additional information about this type of A.W. Faber-Castell slide rule can be reviewed on various Internet web sites including: https://collection.maas.museum/object/378478, https://en.wikipedia.org/wiki/Slide_rule and  https://www.sliderulemuseum.com/isrm/hmd/fc%20slide%20rule%20pages/fc%2015%201-54/fc%2015%201-54.htm. 

The dimensions and features of this A.W. FABER-CASTELL 1/54 DRAMSTADT   Made In Germany are displayed in PICTURE #1 included with this auction listing. The shipping weight of this slide rule together with the its two- part custom cardboard case/holder leather case and protective packing materials will be approximately 9 ounces and will be shipped to the registered mailing address of the eBay Auction bidding winner using United States Postal System (USPS) First Class Mail® Postage. Please note that an invoice showing the total payment breakdown for the (1) winning auction bid, (2) State Tax if applicable, and (3) postage dependent on weight and size, will be sent after the auction.

The eBay Auction bidding winner located outside the United States (US), the automated payment software will generate a US CUSTOMS DECLARATION FORM (CN22) containing the PayPal registered mailing address that will be used as the shipping label placed onto the envelope/packet/package.
 No Reserve. Low Minimum. Priced To Sell.Terms And Conditions1. This auction item is being auctioned "as is" with the East Coast Bits (ECB) description, condition,  evaluation opinion along with the pictures as shown. Information presented in the listing description comes from combining ECB knowledge and expertise, consignor input, references, conferences with subject matter experts, and in-house research using available written material, and unrestricted accessible graphic and text information made available through the Internet. Often available written and online references are mentioned to provide the eBay bidder an opportunity, as desired, to review more information about the auction item. To comply with eBay policy concerning the prevention of possible malicious intent, only the display of secure hypertext transfer protocol (HTTPS) will be placed into the listing. 

2. ECB attempts to provide multiple photographs using different angles and lighting together with adequate descriptive text to assist the eBay bidder in making an informative decision before involvement. While this effort to describe all features/aspects is done in due diligence, it is rare but always possible that some flaw or fault might be missed in the initial assessment and description of this auction item. Note that some pictures may be numbered or identified to bring attention to some feature or aspect of the auction item. Pictures of objects taken through plastic or glass can be difficult with reflected rays of light that may detract from the true coloring or cause the surface of an object to reflect the light source or display aspects of the plastic/glass surface. ECB strongly encourages eBay bidders to review all the pictures and the auction item description to help create a satisfactory auction transaction. Questions about a specific picture(s) are always welcome.

3. For a used auction item, wear and tear aspects that are described in the text and are displayed in the attached photos were the primary factors used by ECB to classify this item condition as pre-owned or used. The overall existing condition was then fully considered by ECB in making appropriate value adjustments in setting the minimum bid for this auction.

4. Satisfaction guaranteed. Full refund privilege minus postage and insurance costs are possible if this auction item is returned within 7 days of receipt using the same manner of delivery, postage, and insurance as applicable. To help expedite this auction item return process, an explanatory email message to ECB for the requested return would be appreciated. This auction item along with any related original box/packaging will be expected to be in the same condition as sent.

5. To help in making an informed decision about involvement, potential eBay bidders are encouraged to ask any questions about the description, references, pictures, postage, shipping arrangements, prior to bidding. Note that while ECB monitors all of its eBay listings to know whether a question has been received about an auction item in order to provide a full answer to all questions if possible, ECB may not be able to respond to all questions that are received just prior to the auction closing.

6. eBay bidders are kindly encouraged not to bid if there is any cause for doubt, answers to questions have not been received or do not answer the question raised, or if there is a refusal to accept any of the terms and conditions that are presented herein. In addition, eBay bidders are requested not to bid if there are not any financial means to pay for this auction item, postage, other postal services, and any associated insurance. As may become necessary, non-payment issues will be addressed using the established eBay Problem Resolution process.

7. This auction item along with protective packaging materials are weighed and published in the auction listing. Total weight less than or equal to 13 ounces (oz) will be shipped to the registered mailing address of the winning eBay Auction bidder from the United States (US) using the United States Postal Service (USPS) First-Class Mail Service. Packages weighing more than 14 oz are required to be shipped using USPS Priority Mail Service. For winning bids over $57, USPS Signature Confirmation Service will be added to the postage total.

8. To assure the correct postage costs, the winning eBay bidder is advised to wait for the formal ECB generated eBay Auction Invoice that will include the required postage, insurance, postal services, and any other costs as are applicable. Costs for postage will be calculated using current United States Postal Service (USPS) rates as published and available from the USPS website.

9. For deliveries within the US, the USPS postage, postal services, and any postal insurance costs will be based on both the envelope/packet/package weight and dimension limitations/restrictions along with the value of the auction item registered as the winning eBay Auction bid. If provided an opportunity for different delivery options, unless advised differently by the winning eBay bidder, ECB will attempt to use the lower cost postage as may be available.

10. For deliveries outside the US, Airmail First Class Mail - International or Airmail First Class Mail - International plus Certificate Of Mailing service will be used. The USPS international postage and all other related costs will be calculated and listed on the eBay Auction Invoice. To ensure understanding of the total auction transaction costs, eBay bidders located outside of the US should ask a question regarding the international postage and shipping charge to get the auction item to their location prior to bidding. Since international postage to different countries can vary widely due to many factors, there is a need to calculate postage on a case by case basis. International eBay bidders should indicate whether postal insurance for the auction item is desired.

11. USPS postage costs for any special mailing situations will be calculated and indicated on the eBay Auction Invoice.

12. ECB will abide by any/all mailing restrictions posted by the country of the eBay bidder. International eBay bidders are advised to become completely informed about any/all restrictions that might apply to this auction item being shipped into their country. Also, international eBay bidders will understand that any/all customs fees, duties, and taxes imposed by their country will be directly handled by the winning eBay bidder. eBay bidders are to be aware that predictions about delivery are subject to unknown factors beyond the control of ECB that may delay the delivery process. Furthermore, ECB cannot be held responsible for any delay or confiscation with this auction item being held by the Customs Officials of the country of the winning eBay bidder. Tracking of a shipment within the US is possible; specific tracking of a shipment outside the US is not possible by ECB.

13. ECB subscribes to the online generation of labels available through the collaboration of eBay/PayPal and the United States Postal Service to purchase USPS postage, other postal services, and insurance as necessary. Such practice generates a label with the winning eBay bidder mailing address as registered with PayPal along with an official USPS tracking number placed onto the eBay auction transaction. To avoid the possibility of delay and/or loss, eBay bidders are requested to make certain that both eBay and PayPal have a current correct mailing address. In an unusual situation of a long complicated mailing address which cannot be printed onto an online label cannot be printed due to overall length, ECB may send an email message through eBay whether a shorter mailing address may be available. ECB may send an email message through eBay for an English translation of a registered foreign address to help assure the correct processing of mail distribution and delivery.

14. As a protective means to ensure delivery, the USPS Signature Confirmation service will be automatically applied to the postage cost when the winning bid for an auction item is equal or over $57 US Dollars. USPS Airmail First Class Mail International & Certificate Of Mailing will be automatically applied to the postage cost when the auction winning bid is equal or over 51 Euros or the equivalent currency of the country of the winning bidder. eBay bidders who may disagree with this delivery precaution are kindly requested not to bid on this auction item.

15. Without postal insurance, the winning eBay bidder accepts all risks associated with delivery to include the possible theft and/or damage. EBC will take all action to securely package and label the auction item but cannot accept responsibility for the secure delivery of this auction item or the replacement of winning eBay bidder funds. As may be necessary, ECB will provide the winning eBay bidder with any/all input that might help in the investigation/recovery of the lost/missing parcel to include the registered PayPal payment receipt and the USPS Tracking Number.

16. Other mailing and postage/insurance options may be accommodated. The winning eBay bidder should contact ECB to coordinate any custom arrangement within 3 days of the auction closing date. Additional postage costs may apply.

17. The shipment of this auction item to any location outside the United States will require the preparation of a US Customs Declaration label on the envelope/packet/package. With the use of online postage labeling, the eBay/PayPal program software will display the listing information on the label including the description of the auction item, weight, and the value as indicated by the winning bid amount. ECB is committed to abide by all stipulated U.S. International Regulations For Mailing. Any/all requests by the winning eBay bidder for any deviation from these published regulations and/or restrictions will be denied.

18. The USPS postage rates are complicated based on the use of zones, calculated weight, and dimensions. Current USPS First Class Mail Service postage cost estimates (January 2018) for US eBay bidders are indicated in the table below for consideration. USPS Signature Confirmation service ($2.55) may be applied to the postage cost when the winning bid for an auction item is equal or over $57 US Dollars. eBay bidders located outside the US should review No.10.First Class Mail Service Postage Estimates (Bid < $57) & Signature Confirmation Service (Winning Bid ≥$57) Weight
(Oz) Winning Bid


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