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ALRO (All-Round): 1010 Commercial (AC-1.17)

ALRO 1010 Commercial (AC-1.17) Business long-scale

Details of: ALRO (All-Round) - 1010 Commercial (AC-1.17)

Type? A generic name (e.g. Enhanced Mannheim) or function/use for special models (e.g. Meteorology) as an aid to grouping similar models across makers. If not the “standard” 25cm linear length, proceeded by the form (e.g. Demonstration, Desktop, Pocket, Waistcoat, Lilliput or Book) + suffix when needed to distinguish between different versions (e.g. early or late). Business long-scale
Sort? L/C/D/T/W/X where L=Linear, C=circular, D=Drum, T=tubular, W=watch, X=miscellaneous (i.e. the rest) C
Construction? Basic construction form of the body i.e. Closed/solid frame or Open frame or Duplex or Other Other
Material? Basic description: ivory/bone/wood/bakelite/plastic/metal/cardboard or combinations e.g. wood/veneered, wood/painted, etc metal/paper
Length? Mostly linear length in cm or " (inches) of the D scale excluding any extensions. But for circular/watch slide rules it is the diameter & for tubular/drum slide rules it is the overall linear scale length. For other calculating aids it is the physical length. Ø 13cm
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 D (doubles as C)
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
Cursor type? Basic description (incl. material) + no. of hairlines, etc on any cursor(s) or alternative to a cursor - e.g. a stylus 1 fixed plastic circular - 1 hairline + 1 moveable plastic circular - 1 hairline
Condition? Cn where n = 0-6  condition/quality scale where 0 = brand new in box & 6 = broken   C2
Date? YYYY for year(s) of production or an approximation/range of years 1950-1960
Extras? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc stitched brown leather wallet + metal box doubling as desk stand - image courtesy of Otto van Poelje
Instructions? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed Dutch early & late versions (early courtesy of Otto van Poelje)
Booklet (PDF)? Downloadable .PDF copy of unusual or uncommon model specific instructions download
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

Circular cursors only version of innovative but impractical single long-scale 6-spiral patented (CH265561) design + tables of conversion factors in lid - try out an online simulation created by Andries de Man

In-Out? MM-YYYY / MM-YYYY of the date added/left the collection or <YYYY if exact MM-YYYY no longer known 11-2021/

All of:  ALRO (All-Round) new search?

ModelType
10 R T.K.F. (AC-1.45b) Waistcoat Rietz
100 R (AC-1.04a) Rietz
100 R (AC-1.04b) Rietz - early
1010 Commercial (AC-1.17) Business long-scale
1010 Commercial (AC-1.18) Business long-scale
200 R (AC-1.05a) Rietz
200 R (AC-1.05a) Rietz - H - early
200 R (AC-1.05a) Rietz - two-tone
200 R (AC-1.05b) Rietz - early
200 R (AC-1.05b) Rietz - green
200 R (AC-1.05b) Rietz - H
200 R (AC-1.05b) Rietz - heavy
200 RL (AC-1.49) Rietz - monochrome
200 RL (AC-1.49) Rietz
300 D (AC-1.08a) Darmstadt
300 D (AC-1.08b) Darmstadt - early
400 D (AC-1.09) Darmstadt
400 D (AC-1.nn) Desktop Darmstadt
50 Ng (AC-1.47) Waistcoat Basic Printing/Conversion
50 Nmmi (AC-1.46a) Waistcoat Basic/Conversion
500 N (AC-1.11) Basic
500 N (AC-1.nn) Desktop Basic
500 N Vergouts (AC-1.11) Basic
600 E (AC-1.19) Electro
746 De Muiderkring (AC-1.27) Radio
746 De Muiderkring (AC-1.nn) Waistcoat Radio
AMI-RO-METER Boehringer Ingelheim (AC-4.01) Medical
BoB3 (AC-1.nn) Reinforced Concrete - System Dussel
Chem (AC-1.23) Chemical
DAST (AC-6.01) Lilliput Calendar
DECIBEL PHILIPS TELECOMMUNICATION (AC-1.44) Waistcoat Radio
DECIBEL PTT (AC-1.42) Radio
DECIBEL PTT (AC-1.44) Pocket Radio
Delta Lloyd (AC-2.25) Pocket Building
DISCABOIS (AC-1.24) Forestry - System Brouhon
EMF DORDT (AC-3.10) Electro
GRASSO-PERSLUCHT (AC-2.22) Refrigerant/Conversion
gti installatietechniek (AC-2.10) Central Heating
Ha Tex (AC-1.16b) Business/Textile
Ha.A2 (AC-1.12) Basic Retail
HYDRAULIC RELATIONS IN DRILLING B.I.P.M. (AC-2.01) Petroleum
Klinische Rekencirkel (AC-1.39) Desktop Medical System Lips
KLM CONVAIR 240 (AC-1.nn) Aviation
KLM CONVAIR 240 (AC-1.nn) Aviation - prototype
KLM Petrol & Oil Tables (AC-1.29) Petroleum/Conversion
KLM Petrol & Oil Tables (AC-1.29) Petroleum/Conversion - early
KLM Petrol & Oil Tables (AC-1.29) Petroleum/Conversion - prototype
KLM SYST ALRO - System van Roon (AC-1.35) Desktop Navigational
KLOOS (AC-1.30) Steel Constructions
KNM BEGEMANN (AC-2.27) Pipe Flow
Lici Transistor CdS (AC-1.41) Pocket Photographic
MILITAIRE REKENSCHIJF (AC-1.32) Military Terrain Analysis
MILITAIRE REKENSCHIJF (AC-1.33) Military Terrain Analysis - monochrome
MILITARY CALCULATOR (AC-1.nn) Military Terrain Analysis
MOEDERS VOOR MOEDERS (AC-4.11) Medical
MUD WEIGHT - FLOWING WELL B.I.P.M. (AC-2.02) Petroleum
Ned. Octr. Aangevr. (AC-1.03) Rietz
NIPO INDICATOR (AC-7.09) Statistics
Oil Spill (AC-7.06) Petroleum
PHILIPS AUDIO COMMUNICATIIONS (AC-3.02) Electro/Conversion
PLANISFEER (AC-6.05) Desktop Astronomy
RADIOLOGISCHE REKENSCHIJF (AC-7.01) Pocket Military Radiation
Radiologsche rekenschijf PTT (AC-7.02a) Radiation
rekenschijf geluidsniveauverschil van gevels (AC-7.03) Building Facades
rekenschuif spoorweglawaai (AC-7.04) Transport
SHELL VISCOKLOK (AC-1.40) Petroleum
SIRKORSKY S-51 (AC-1.nn) Aviation - prototype
ST 9-430/2 (AC-1.34a) Military Artillery Range Finding (1 of 2)
ST 9-430/2 (AC-1.34b) Military Artillery Range Finding (2 of 2)
SYNRES (AC-2.23) Paint Conversion
Time Zones NEC (AC-6.04) Conversion
Truck Tyre Performance (AC-1.20) Commercial Transport
Verkeerslawaai (AC-7.05) Transport - green & black
WeM (AC-1.nn) Rietz
WeR2 5 (AC-1.07b) Rietz