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Unique: Universal

Unique Universal Log-Log

Details of: Unique - Universal

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). Log-Log
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 wood/paper coated with plastic laminate
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. 10"
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 LL2,S,A / B,CI,C / D,T,LL3
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 metal/plastic - 1 hairline
Condition? Cn where n = 0-6  condition/quality scale where 0 = brand new in box & 6 = broken   C3
Date? YYYY for year(s) of production or an approximation/range of years >1928
Extras? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc maroon cardboard case + "Half-Hour" instructions - image courtesy ISRM
Instructions? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed Booklet: "Introducing .....THE SLIDE RULE TO THE MAN IN THE STREET"
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

On all Log-Log models LU unconventionally = Log Upper (LL2) & LL = Log Lower (LL3) - incl. CI scale + tables of properties of materials on back

In-Out? MM-YYYY / MM-YYYY of the date added/left the collection or <YYYY if exact MM-YYYY no longer known <2000/

All of:  Unique new search?

10G Legible Mannheim
10L/L Log Log Log-Log
10L/L Log Log Log-Log - early
5G Legible Pocket Mannheim
5L/L Log Log Pocket Log-Log
5L/L Log Log Pocket Log-Log - early
Area Calculator Pocket Surface Areas - imperial
B Brighton Darmstadt
C Commercial Business
Caterers and Confectioners Retail Cost & Portion Control
Concrete Volume Computer Pocket Concrete
Costing Retail & Monetary
Craft Pocket Retail Costing
D Dualistic High-Speed (1) Pocket Log-Log long-scale
D Dualistic High-Speed (3) Log-Log long-scale
Double H Log-Log - prototype
E Electrical Electro - early
F Florida Enhanced Mannheim
F.S. Ratcliffe Spring Calculating Springs poly-slide (2)
F5 Florida Pocket Enhanced Mannheim
Five-Ten Pocket Mannheim long-scale
Friel-Sturdy Radiographic Exposure Calculator Radiographic Exposure
Harfield Weight Calculator Steel - George Mancell
Harfield Weight Calculator Steel - Harrison & Whitfield
Interval Calculator Calendar
Jiffy Lilliput Enhanced Mannheim without Trig scales
M Monetary Monetary
Mini-Mannheim Lilliput Enhanced Mannheim without Trig scales
N Navigational Enhanced Mannheim
O Chemical Chemical/Log-Log
Percentage Butting Metal Seams
Pioneer Long Scale Desktop ?? long-scale
Rolling Mill Calculator Steel poly-slide (2)
Rolling Mill Calculator Steel poly-slide (2) - prototype
Ten-Twenty Mannheim long-scale
TER No.1 Cabling
TER No.2 Cabling
TER No.3 Cabling
TER No.4 Cabling
TER No.5 Cabling
Tubemaking and Deep Drawing Machining
U1 Universal I Log-Log
U1 Universal One Log-Log
U1/2 Universal I Pocket Log-Log
U2 Universal II Log-Log
Unique Mannheim (type 2) - early
Universal Log-Log
Wilkinson Sugar Retail/Conversion