The calculating rule instructions comprise a four side folded pamphlet measuring approx 7 1/8 x 10 3/8 inches, printed in black on light green paper. These instructions came with my c1910-12, and although around the right time period are unlikely to be its original instructions as the rule is German and these instructions are English. #Faber castell 2 82 manual fullVersion 1 c1905-10 Click on the image for full PDF. Other than mentioned above, the text and punctuation is identical between the versions, except a typo was introduced in the later version - 'above' in 'Example 9 on the back page is now spelt 'abvoe'. The pagination is consequently slightly different. Is not bracketed and 'U.S.A' is, on the later version 'N.J.' Is bracketed and 'U.S.A.' - There are 2 additional paragraphs in the introduction of the earlier version about construction features which are not present in the later version. On the front page of the earlier version 'N.J.' The eariler version uses some subtly different typefaces and sizes on the front page compared to the later version, most obvious are 'MANUFACTORIES' and 'HOUSES'. The front corner decorations and matching back motif are more ornate on the earlier version, the later version is a less 'curvey' style. Faber's Improved Calculating Rule ( &, enhanced Mannheim) These two versions of these instructions are from around the same time period and although the layout and texts are almost identical there are a few subtle differences: - The earlier version is slightly narrower physically, although the printing area is the same. 2, 4, 10.13, Old Chevy Muscle Car Automotive Engineering Sliderule. 1, 10, 92.50, Like New Faber Castell Slide Rule 2/82 and Leather Care. 1, 10, 23.00, pickett log log slide rule w/manual/reg card.
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