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Details of: Aristo - 890 Rietz
| Type | ? A generic name (e.g. Rietz) or function/use for specialist models (e.g. Meteorology) for grouping similar models across makers. If not “standard” 25cm linear length, preceded by the form (i.e. Demonstration, Desktop, Pocket, Waistcoat, Keyring, Lilliput or Book) + if needed, qualification to distinguish between versions (e.g. early or late). | Pocket Rietz |
|---|---|---|
| Sort | ? L/C/D/T/W/X where L=Linear, C=circular, D=Drum, T=tubular, W=watch, X=miscellaneous (i.e. the rest) | L |
| Construction | ? Basic construction form of the body i.e. Closed/solid frame or Open frame or Duplex or Other | Closed/solid frame |
| Material | ? Basic description: ivory/bone/wood/bakelite/plastic/metal/cardboard or combinations e.g. wood/veneered, wood/painted, etc | plastic |
| Length | ? Mostly the linear length of the D scale (in cm or inches) excluding any extensions. For circular/watch slide rules it is the diameter but for helical/tubular/drum slide rules it is the overall scale length. For other calculating aids it is the physical length. | 12½cm |
| Scales front | ? Standard (not maker’s) symbols for scales on front face e.g. A = X² (1-100) but § = generic symbol (signum sectiōnis) for any non-standard scale + scales between solidi / / are on the slide(s) whereas scales after vertical line | or after reversed solidus \ are on a straight or bevelled top or bottom side edge | cm \ K,A / B,CI,C / D,L |
| Scales back | ? Standard (not maker’s) symbols for scales on back face e.g. S = sine (5° to 90° & 85° to 0°) or sin(x) but § = generic symbol (signum sectiōnis) for any non-standard scale + scales between solidi / / are on the back of slide(s) but scales listed after / / - notation are on another surface e.g. back of stock or inside a lid | / S,S&T,T / |
| Cursor type | ? Basic description (incl. material) + no. of hairlines, etc on any cursor(s) or alternative to a cursor - e.g. a stylus | magnifying plastic - 1 hairline + 3 peripheral hairlines |
| Condition | ? Cn where n = 0-6 condition/quality scale where 0 = brand new in box & 6 = broken | C0 |
| Date | ? YYYY for year(s) of production or an approximation/range of years | 1969 |
| Extras | ? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc | brown stitched leatherette comb case blind-stamped ARISTO |
| Instructions | ? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed | Dutch |
| Comments | ? Any special or noteworthy traits + significant use-related facts + pertinent details of scales/tables in well of stock + any significant tables, etc on the back of the stock | Compared to sibling twin model 89 has magnifying cursor & peripheral hairlines |
| In-Out | ? MM-YYYY / MM-YYYY of the date added/left the collection or <YYYY if exact MM-YYYY no longer known | <2005/ |
All of: Aristo new search?
| Model | Type |
|---|---|
| 01068 Studio | Desktop Technical/Log-Log two-tone |
| 01070 MultiLog | Desktop Technical/Log-Log |
| 0602 | Pocket Basic Retail two-tone |
| 0901 Junior | Technical two-tone (ver. 2) |
| 0902 JuniorTrig | Technical two-tone |
| 0903 LL Scholar | Technical/Log-Log two tone (ver. 1) |
| 0903 LL Scholar | Technical/Log-Log two tone (ver. 2) |
| 0903 Scholar | Rietz-like two tone (ver. 2) |
| 0903 Scholar | Rietz-like two tone (ver. 3) |
| 0903 VS Scholar | Technical two-tone (ver. 1) |
| 0903 VS-2 Scholar | Technical two-tone (ver. 1) |
| 0906 LL BiScholar | Technical/Log-Log |
| 0908 TriLog | Technical/Log-Log two tone (ver. 1) |
| 0929 MultiRietz | Technical two-tone |
| 0929 MultiTrig | Technical two-tone |
| 0968 Studio | Technical/Log-Log two-tone (ver. 1) |
| 0968 Studio | Technical/Log-Log two-tone (ver. 2) |
| 0969 StudioLog | Technical/Log-Log two-tone |
| 0970 MultiLog | Technical/Log-Log two-tone |
| 0971 HyperboLog | Log-Log Hyperbolic |
| 10071 | Lighting - System Herbrechtingen |
| 101 Junior | Demonstration OHP School/Technical |
| 10181 | Pocket Basic |
| 1055 Commerz I | Desktop Business |
| 1067 U Darmstadt | Desktop Darmstadt |
| 1067 U Darmstadt | Desktop Darmstadt |
| 109 Rietz | Desktop Rietz |
| 168 Studio | Demonstration OHP Technical/Log-Log |
| 206/1&2 BiScholar | Demonstration School 35mm Slide Projection Set |
| 30050 Lindell "55" | Desktop Transversal Planimeter |
| 301 Junior | Demonstration School/Technical |
| 303 LL Scholar | Demonstration School/Log-Log |
| 60115 HOHLUX | Photography |
| 60126 RADAR-WIND | Desktop Military Artillery Range Finding/Meteorology |
| 60147 Waerme- und Dampfpreis-Kalculator | Fuel Prices (ver. 4) |
| 60168 Stahlgewichtsrechner | Steel Weight Calculator |
| 60190 Gradtag | Desktop K Factor Heating Oil Supply |
| 604 Prozent-Rechner | Pocket Basic Retail |
| 615 Aviat | Aviation |
| 620 | Basic |
| 622 Calculator | Enhanced Mannheim without Trig scales two-tone |
| 623 Commerz III | Business two-tone |
| 670 NSU | Pocket Keyring/Time-Speed-Distance Travel Calculator |
| 803 MonoRietz | Pocket Rietz two-tone |
| 810 Puck | Lilliput Enhanced Rietz-like |
| 812 Simplex | Pocket Enhanced Mannheim |
| 815 Elektro | Pocket Electro |
| 860 | Pocket Darmstadt |
| 867 U | Pocket Darmstadt |
| 867 U | Pocket Darmstadt - early |
| 868 Studio | Pocket Technical/Log-Log two-tone (ver. 1) |
| 868 Studio | Pocket Technical/Log-Log two-tone (ver. 2) |
| 89 | Pocket Rietz |
| 89 Rietz | Pocket Rietz |
| 890 Rietz | Pocket Rietz |
| 90107 | Lighting |
| 90184 | Steel |
| 90192 | Textile |
| 911 Simplex | Mannheim |
| 914 Elektro | Electro |
| 915 Elektro | Electro |
| 918 Kanalisation | Pipe Flow in sewerage pipes - System Vicari |
| 939 Stahlbeton | Reinforced Concrete - System Göttsch |
| 940 Stahlbeton (DIN 1045) | Reinforced Concrete - System Göttsch |
| 945 Praktiker | Business |
| 956 Bildflug | Photography |
| 965 Commerz II | Business |
| 968 Studio | Technical/Log-Log two-tone (ver. 1) |
| 968 Studio | Technical/Log-Log two-tone (ver. 2) |
| 970 MultiLog | Technical/Log-Log two-tone |
| 99 | Rietz (ver. 1) |
| 99 | Rietz (ver. 2) |
| 99 Rietz | Demonstration/Display Rietz |
| 99 Rietz | Demonstration/Display Rietz - early |
| M 66 | Basic Electronic Calculator |
| M 85 | Scientific Electronic Calculator (ver. 1) |
