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Pickett & Eckel: Chords & Keys

Pickett & Eckel Chords & Keys Music Composition

Details of: Pickett & Eckel - Chords & Keys

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). Music Composition
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 Other/simplex
Material? Basic description: ivory/bone/wood/bakelite/plastic/metal/cardboard or combinations e.g. wood/veneered, wood/painted, etc card
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. 8½"
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 §,§
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 multiple windows
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 1964
Extras? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc plastic wallet
Instructions? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed English on back
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

Slide chart copyrighted design by Lynn T. Harris for organs, pianos & accordions - surprisingly made by manufacturer better known for its aluminium slide rules

In-Out? MM-YYYY / MM-YYYY of the date added/left the collection or <YYYY if exact MM-YYYY no longer known <2010/

All of:  Pickett & Eckel new search?

ModelType
(NoName) Fisher Universal Valve Sizing
108-ES Pocket Rietz-like
120 MICROLINE Rietz (ver. 1)
200 Pocketr Reitz
22 Pocket Building
300 Pocket Log-Log (ver. 2)
500 Log-Log
520 Photography
700 Pocket Photography
Chords & Keys Music Composition
N-500-ES Log-Log
N-515-T Eelctronic
N1006-T Pocket Technical
N1010-ES Technical
N1010-T Technical
N1041-G Fisher Universal Valve Sizing
N3-ES Log-Log (ver. 4)
N600-ES Pocket Log-Log
N600-T Pocket Log-Log
N7-T Pipe Flow
N808-T Petroleum
N902-ES Rietz (ver. 2)
N902-T Rietz (ver. 2)