Overview

Pickett
Keuffel & Esser
Circular


Sheet 1: Pickett

Ascension # Reference Comparable Image Ref # Brand and Model No. Scales Description Dona-tion?






18.04.06.101 15.03.28.01 Pickett 120 Student Mannheim Leatherette Sleeve K, A [ B, T Cot, S Cos, CI, C ] D, L First design of one piece injection molded stock and slide, White. No markings $10
18.09.17.12 09.10.27.02 Pickett No. 120 Trainer. Sleeve, manual and original retail box K, A [ B, T Cot, S Cos, CI, C ] D, L Note: This was Pickett's first attempt at a low cost all plastic slide rule. $10
18.01.04.04

SOLD
11.11.18.04 Pickett 160-ES Student Microline plastic Pocket. Black Leatherette sleeve K, A [ B, CI, C ] D, L All plastic pocket slide rule. Initials scratched on back $10
17.12.17.18 12.06.24.15 Pickett Microline 140-ES Expanded Log Log Version 2
Black sleeve
LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics. No Markings $15
14.07.03.41 12.06.24.15 Pickett Microline 140-ES Expanded Log Log Version 2
Black sleeve
LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics. No Markings $15
12.04.24.16 12.06.24.15 Pickett Microline 140-ES Expanded Log Log Version 2
Black sleeve
LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics. No Markings $15
17.12.17.18 14.07.02.58 Pickett Microline 140-T Expanded Log Log Version 1 Black sleeve with Manual LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2
Made in USA - New expanded 25 scale set - All scales Black. No Markings $15
18.04.06.94 18.09.17.10 Pickett N-515-T Electronic CIE Logo Brown Leather Sleeve with belt loop (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Reactance formula, Ohm's law, etc
For Cleveland Institute of Electronics, Modern Pickett Logo
Perfect, no Markings
$75
18.03.20.02 10.12.12.03 Pickett N-515-T 1969 Electronic CIE Logo Brown Leather Sleeve with belt loop (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Reactance formula, Ohm's law, etc
For Cleveland Institute of Electronics, Round Black Pickett Logo
Very Good, no Markings
$70
17.09.15.03 10.12.12.03 Pickett N-515-T Electronic CIE Logo Tan Leather Sleeve (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Reactance formula, Ohm's law, etc
For Cleveland Institute of Electronics, Round Black Logo, Curved Braces Modern Pickett Logo on sleeve, Very Good, no Markings $65
18.04.06.86 04.08.04.01 Pickett N4-ES Vector-Type Log Log Dual-Based Speed Rule 1964-75 Brown Leather Sleeve LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
3√ #1, 3√ #2, 3√ #3, DF [ CF, CIF, T1, T2, ST, S Cos, CI, C ] D, DI, √ #1, √ #2
Made in USA - Aluminum Stock - Modern Logo. No artwork codes. No Markings $50
18.12.30.05 17.08.24.11 Pickett Model 4-ES Log Log Vector Hyperbolic Dual Base - 1958-62 Tan Leather Sleeve w/belt loop LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
3√ #1, 3√ #2, 3√ #3, DF [ CF, T1, T2, ST, S Cos, <CI, C ] D, <DI, √ #1, √ #2
Aluminum Stock , Round Black Logo, Square Braces, extended nylon cursor bars, flat lens. Inverse scales noted with left arrow '<'.. Name inside sleeve flap $50
18.04.06.85 04.08.04.01 Pickett N4-ES Vector Log Log Dual-Based Speed Rule 1958-1959 Tan Leather Sleeve w/ belt loop LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
3√ #1, 3√ #2, 3√ #3, DF [ CF, T1, T2, ST, S Cos, <CI, C ] D, <DI, √ #1, √ #2
Round Black Logo with artwork code. Inverse scales in RED Curved Braces, Flat lens, extended blocks No markings $50
14.07.03.49 12.08.05.02 Pickett N4-ES Vector Log Log Dual-Based Speed Rule 1958-1959 Tan Leather Sleeve w/ belt loop LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
3√ #1, 3√ #2, 3√ #3, DF [ CF, T1, T2, ST, S Cos, <CI, C ] D, <DI, √ #1, √ #2
Round Black Logo with artwork code. Inverse scales in RED Curved Braces, Convex lens Name inside flap of sleeve. Otherwise perfect. $50
18.09.08.17 11.08.23.01 Pickett N3-ES - Power Log Exponential Brown Leather Sleeve w/belt loop √  #1, √  #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Modern Logo with artwork code. Inverse scales in RED Curved Braces, Name on sleeve flap $50
18.04.06.90 11.08.23.01 Pickett N3-ES - Power Log Exponential Brown Leather Sleeve w/belt loop √  #1, √  #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Modern Logo with artwork code. Inverse scales in RED Curved Braces, Name on sleeve flap $50
18.04.06.88

SOLD
13.02.20.06 Pickett N3P-ES – Pocket Power Log Exponential Black Leather Sleeve w/belt clip √  #1, √  #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Modern Logo with artwork code. Inverse scales in RED. Curved Braces, No markings. Perfect $100
18.04.06.73 12.06.24.12 Pickett N600-ES Log Log Duplex NIB Sleeve,with clip, Manual LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Made in USA - Modern Pickett Logo, New Old Stock in Retail box end with manual. Hooked braces $75
18.01.04.03 12.06.24.12 Pickett N600-ES Log Log Duplex Brown leather Sleeve with clip LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Made in USA - Modern Pickett Logo, $50
18.04.06.68 09.01.12.116 Pickett N803-ES - Log Log Speed Rule Dual Base 1960-75 NIB Suede Sleeve, Retail Box, Manual √ #1, √  #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Modern logo, curved braces, grooved convex lens New Old Stock. Outer box has a small tear $50
13.07.03.14 12.06.24.50 Pickett N-531-ES Capitol Radio Engineering Institute - 1960 , Black leather sleeve L, Ln, A [ B, CI, C ] D, 2π, K
LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Made in USA by Pickett for Capitol Radio Engineering Institute CREI.Round black logo, curved braces. Slight oxidation on braces. Scales slightly faded. No markings. Sleeve has modern logo. $40
14.01.10.79 12.06.24.50 Pickett N-531-ES Capitol Radio Engineering Institute - 1960 , Brown leather sleeve L, Ln, A [ B, CI, C ] D, 2π, K
LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Made in USA by Pickett for Capitol Radio Engineering Institute CREI.Round black logo, curved braces. Scales slightly faded. No markings. Sleeve has modern logo. $40
18.04.06.93 12.06.24.50 Pickett N-531-ES Capitol Radio Engineering Institute - 1960 , Brown leather sleeve w/belt loop L, Ln, A [ B, CI, C ] D, 2π, K
LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Made in USA by Pickett for Capitol Radio Engineering Institute CREI.Round black logo, curved braces. Perfect. No markings. Sleeve has triangle logo $50
18.04.06.81 11.11.22.02 Pickett N-500-ES - Hi-Log Log Duplex - 1964 Black Leather Sleeve w/belt loop +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Made in USA - radius braces, Modern logo New Old Stock, retail Box. No Manual. Slide rule is perfect, box is a bit worn. $35
15.05.09.04 11.11.22.02 Pickett N-500-ES - Hi-Log Log Duplex - 1964 , no sleeve +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Made in USA - radius braces, Modern logo Slide rule is perfect. No markings $15
15.05.09.04 11.11.22.02 Pickett N-500-ES - Hi-Log Log Duplex c1970 , Black sleeve, Retail Box with “5 Moon Flights” +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Made in USA - radius braces, Modern logo Slide rule is perfect. No markings on sleeve. Retail Box with “5 Moon Flights” label, a bit tattered pen squiggles on side. $50
18.09.17.09 12.06.18.05 Pickett & Eckel 1000 Ortho-Phase Duplex sn D301547 Felt sleeve A [ B, T Cot , ST, S Cos] D, K
DF [ CF, CIF, CI, C ] D, L
Magnesium stock, triangle logo, rounded stamped metal braces, machined cursor blocks. Note the CI scale with the numbers circled $40
13.00.00.28 13.00.00.27 Pickett 1010 Trig Duplex, 1953 Magnesium, Black leatherette Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
DF [ CF, CIF, CI, C ] D, DI, L
Made in USA – V1 scales set. RED inverse scales. Plastic bar cursor, Round Black logo, square braces, Added DI scale. Scales faded. $15
17.09.15.02 10.05.10.01 Pickett N1010-ES Trig Duplex 1964, Tan Suede Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
L, DF [ CF, CIF, CI, C ] D, DI
Made in USA – V3 scale set. Plastic bar cursor, Curved braces, Round Black logo, no markings. Polybag $35
18.04.06.92 10.05.10.01 Pickett N1010-ES Trig Duplex 1964, Tan Suede Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
L, DF [ CF, CIF, CI, C ] D, DI
Made in USA – V3 scale set. Plastic bar cursor, Square braces, Round Black logo, no markings $30
17.01.26.01 10.05.10.01 Pickett N1010-ES Trig Duplex Black Leather Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
L, DF [ CF, CIF, CI, C ] D, DI
Made in USA – V3 scale set. Plastic bar cursor, Square braces, Round Black logo, Name inside flap $30
17.08.24.13 10.05.10.01 Pickett N1010-ES Trig Duplex Black Leatherette Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
L, DF [ CF, CIF, CI, C ] D, DI
Made in USA – V3 scale set. Plastic bar cursor, Square braces, Round Black logo, $20
14.01.10.54 11.11.21.07 Pickett N1010-ES Trig Duplex c1964 Brown Leather Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
DF [ CF, CIF, CI, C ] D, DI, L
Made in USA – V1 scales set. RED inverse scales. Plastic bar cursor, Round Black logo, square braces, Added DI scale. No markings $30
14.07.02.67 12.06.24.47 Pickett N1010-T Trig Duplex c1964 Brown Leather Sleeve K, A, [B, ST, T  Cot, S Cos, C] D, DI
DF [ CF, CIF, CI, C ] D, DI, L
Made in USA – V1 scales set. RED inverse scales. Plastic bar cursor, Round Black logo, square braces, Added DI scale. Name inside flap $30
18.04.06.70 16.06.02.02 Pickett N1010-T Trig Duplex 1964 NIB, Black Sleeve w/belt loop K, A, [B, ST, T  Cot, S Cos, C] D, DI
L, DF [ CF, CIF, CI, C ] D, DI
Made in USA – New Old Stock. V3 scale set. Plastic bar cursor, radius braces, Round Black logo, curved braces, retail Box. Manual. Slide rule, original contents, box is good $40
18.04.06.66 18.04.06.63 Pickett N1010SL-ES Super Power Trig, black sleeve, Retail box. √ #1, √  #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
L, DF [ CF, CIF, CI, C ] D, DI, Ln
Wide Plastic Cursor, Curved Braces, Modern Logo, Red and Black Text Original box is tatty. Sleeve and slide rule perfect. No manual $40
18.04.06.69 18.04.06.63 Pickett N1010SL-ES Super Power Trig, black sleeve, Retail box. √ #1, √  #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
L, DF [ CF, CIF, CI, C ] D, DI, Ln
Wide Plastic Cursor, Curved Braces, Modern Logo, Red and Black Text. Original box is stained. Sleeve and slide rule perfect. No manual $40
18.04.06.66 18.04.06.64 Pickett N1010SL-T Super Power Trig, NIB, black sleeve, Retail box. √ #1, √  #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
L, DF [ CF, CIF, CI, C ] D, DI, Ln
Wide Plastic Cursor, Curved Braces, Modern Logo, Red and Black Text Original box. Sleeve and slide rule perfect. No manual $40
14.01.10.55 09.01.12.94 Pickett 800-ES - Log Log Synchro-Scale – 1954 Early Brown Leather sleeve LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Made in USA - Flat stock braces, metal bars and flat cursor lens. slotted slide. All black text. $40
15.02.27.02 15.02.27.02 Pickett 800-T - Log Log Synchro-Scale – 1957 Brown Leather sleeve w/belt loop LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Made in USA – Round Black Logo, Square braces, extended cursor bars, and flat cursor lens. slotted slide. Red and black text. Sleeve has names on flap. Cloth insert. Excellent $40
17.08.24.19 17.08.24.18 Pickett N800-ES Log Log Speed Rule 1964 NIB, Black Sleeve with belt loop, Manual, etc √ #1, √  #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Made in USA, New Old Stock. Complete with manual and documents. Modern logo, Curved braces, convex lens. Retail Box. Perfect $60
17.12.17.16 09.10.23.01 Pickett N902-ES Simplex Trig  Version 2. Retail Box. Black Sleeve, manual K, A [ B, T Cot, S Cos, CI, C ] D, L
Equivalents and instructions
Made in USA - Aluminum Stock - With CI scale, Radius Braces, Modern Logo,. Curved braces Markings inside sleeve flap Retail box with manual. Both faded. $50
17.12.17.19 14.09.17.02 Pickett N902-ES Simplex Trig  Version 2. Leatherette sleeve K, A [ B, T Cot, S Cos, CI, C ] D, L
Equivalents and instructions
Made in USA – With CI scale, Radius Braces, Round Black Logo,. Curved braces scales slightly faded. $10
18.04.06.98 10.12.12.05 Pickett N902-T Simplex Trig  Leatherette sleeve K, A [ B, T Cot, S Cos, CI, C ] D, L
Equivalents and instructions
Made in USA – Radius Braces, Modern Logo,. Curved braces scales slightly faded. $10
13.02.20.03 18.01.04.02 Pickett N904-ES Trig and Decimal Keeper Speed Rule - 1960-62 NIB Black sleeve, Manual K, A [ B, T Cot, S Cos, CI, C ] D, L
K*, A* [ B*, T*, S*, CI*, C* ] D*, L*
Popular slide rule for the UIL contests. It was banned from many competitions. Perfect, box has modern logo, Slide rule has Round black logo. With manual $50
18.04.06.76 15.07.07.02 Pickett Model 2-T - Deci Log Log Duplex Retail Box, Rubber Sleeve 3√ #1, 3√ #2, 3√ #3, L [ T, T, ST, S Cos, CI, C ] D, √ #1, √ #2
1/N1, 1/N2, 1/N3, 1/N4 [ Digits, CF, CI, C] Co D, N1, N2, N3, N4
Pristine Magnesium stock, Retail box and Rubber sleeve. Hard to find in this condition. Sn015655 $100
16.02.07.01 13.10.09.05 P&E (Pickett & Eckel) Model 3 Deci Log Log Vector Version 1, sn CO28822, Rubber sleeve 3√ #1, 3√ #2, 3√ #3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,√ #1, √ #2
1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947 Early Magnesium Stock with serial number on cursor blocks. No Logo at its introduction. Gray Rubber sleeve. Excellent. Name taped to sleeve $80
14.07.03.10 13.10.09.05 P&E (Pickett & Eckel) Model 3 Deci Log Log Vector Version 1, sn CO29234, Rubber sleeve 3√ #1, 3√ #2, 3√ #3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,√ #1, √ #2
1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947 Early Magnesium Stock with serial number on cursor blocks. No Logo at its introduction. Gray Rubber sleeve. Excellent. $80
14.07.03.51 17.08.24.18 Pickett N800-ES Log Log Speed Rule 1964 Black Leather Sleeve √ #1, √  #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Made in USA, Modern logo, Curved braces, convex lens. Perfect. No markings $30
14.07.02.70 17.08.24.18 Pickett N800-ES Log Log Speed Rule 1964 Black Leather Sleeve √ #1, √  #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Made in USA, Modern logo, Curved braces, convex lens. Markings on sleeve flap $25

Sheet 2: Keuffel & Esser

Ascension # Reference Comparable Image Ref # Brand and Model No. Scales Description Dona-tion?






18.04.06.28 13.06.25.08 K&E N4041 Mannheim Slide Rule, sn640251 Black Box sleeve w.text. A [ B,  C ] D
[ S, L, T ]
Made in U.S.A. - New Improved Cursor. Sleeve flap detached. Slide rule is perfect/ 20
18.04.06.40 15.06.03.01 K&E 4053-3 Polyphase Lot 315 c1915 Brown Leather Sleeve. Original Box 10in // A [ B, CI, C ] D || K
[ S, L, T ]
Equivalents Label
Side K Scale, Scale labels on right end of stock. All glass cursor, name on sleeve. No defects on slide rule. Excellent. $40
18.04.06.39 14.07.02.20 K&E 4053-5 20 inch Polyphase sn687538 (1925-1932) Leather sleeve, 20in // A [ B, CI, C ] D, K || 50cm
[ S, L, T ]
Equivalents Label
New Improved Cursor. Short section on end of inch and cm scales missing. Sleeve intact with no markings. Slight shipping premium needed 80
14.07.02.22 09.01.12.49 K&E 4051-5 20 inch Lot#179 (c1915) 20in // A [ B, C ] D || 52cm
[ S, L, T ]
Equivalents Label
New Improved Cursor. (S/B all glass cursor with metal blocks). Some discoloration. No sleeve. Slight shipping premium needed 40
17.12.17.04 13.01.09.02 K&E N4053-5 20 inch Polyphase sn694397 (1936-1942) Leather sleeve,in Box 20in // A [ B, CI, C ] D, K || 50cm
[ S, L, T ]
Equivalents Label
Perfect. No markings. Improved cursor. Sleeve intact. Box shows wear and has tape on each end to prevent tearing. 100
16.02.29.05 13.06.25.07 K&E 4053-3 Polyphase, New Deasign c.1956 sn487639, Green Leather Sleeve 10in // A [ B, CI, C ] D, K || 25cm
[ S, L, T ]
Equivalents
New Design. No Markings. Top stock yellowed. 30
18.12.30.04 12.02.19.03 K&E 68-1617 Polyphase S/N 750904 c1962-1975 in retail box Green Leather sleeve. 10in // A [ B, CI, C ] D, K || 25cm
[ S, L, T ]
Equivalents
New design. Box has 68-1622 label. Name label on sleeve. With some document 40
18.04.06.05 18.04.06.41 K&E 4139 Cooke Radio Rule – sn496740 L, DF [ CF, CIF, CI, C ] D, 2π
LC, A [ B, T Cot, ST, S Cos ] D, DI
Designed by Nelson M. Cooke, Produced from 1942 through 1967 by K&E, No sleeve. Slide rule perfect, no markings 60
18.04.06.12 04.11.03.01 K&E 4160 Chemists Rule S/N 284743 SOUGHT [ GIVEN, CI] D (Oxide Elem.)
SOUGHT [ GIVEN, C] D< (Acid, Base, Salt)
All glass cursor, Sleeve is poor, open on one end, more yellowed than gallery model. otherwise perfect slide rule 200
18.04.06.19 14.07.02.10 K&E N-4100 Stadia Slide Rule sn623589 c1936 in box, Tan leather sleeve R [ H, HC, V ] A
[ C, B ]
For surveyors. Azimuth and Elevations. Perfect. sleeve and box, no markings 200
15.09.05.01 15.05.11.03 K&E 4181-3 Log Log Duplex Decitrig s/n 354695 “Ivorite” Tan Leather Sleeve LL01, L, K, A [ B, T Cot, SRT, S Cos ] D, DI, LL1
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2
Made in U.S.A. - all plastic (trade name 'Ivorite') stock, plastic cursor lens. Name i=on inside of flap. Great condition. 30
18.04.06.43 14.07.02.37 K&E 4058C Beginner's Slide Rule, Black Hard Box sleeve w.text. A [ B,  C ] D
[ S, L, T ]
Made in U.S.A. - All glass cursor with wood blocks. Perfect 15
15.06.17.01 13.06.25.03 K&E 4058W Beginner's Slide Rule, Black Leatherette sleeve w.text. A [ B,  C ] D
[ S, L, T ]
Made in U.S.A. - Metal framed cursor . Some green tarnish on cursor, back has red lettering 10
18.04.06.25 17.08.24.06 K&E 68-1100 Deci-Lon 10 (Version 1) . sn236836. Tan leather sleeve w/belt loop Ln-3, Ln-2, Ln-1, Ln-0, A [ B, T Cot, SRT, S Cos, C ] D, DI, K
Sq1, Sq2, DF [ CF, CIF, L, CI, C ] D, Ln0, Ln1, Ln2, Ln3
Version 1. No model number. No ridges on slide. Name inside flap. 85
17.12.17.05 17.08.24.06 K&E 68-1100 Deci-Lon 10 (Version 1) . sn238737. Tan leather sleeve w/belt loop Ln-3, Ln-2, Ln-1, Ln-0, A [ B, T Cot, SRT, S Cos, C ] D, DI, K
Sq1, Sq2, DF [ CF, CIF, L, CI, C ] D, Ln0, Ln1, Ln2, Ln3
Version 1. No model number. No ridges on slide. Name inside flap. 90
18.04.06.24 13.09.03.01 K&E 68-1100 Deci-Lon 10 (Version 2) . sn215350. Tan leather sleeve w/belt loop Ln-3, Ln-2, Ln-1, Ln-0, A [ B, T Cot, SRT, S Cos, C ] D, DI, K
Sq1, Sq2, DF [ CF, CIF, L, CI, C ] D, Ln0, Ln1, Ln2, Ln3
Version 2. With model number. Red and black ridges on slide. Name inside flap. No markings. 60
18.09.17.05 15.07.07.01 K&E 4081-3 Log Log Duplex Decitrig sn776175 (1939) in brown leather sleeve. LL0, LL00, K, A [ B, T Cot, ST, S Cos ] D, DI, K
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
New Improved Cursor. No KERCS. Sleeve intact. Sleeve has original owners nickname “Soup” on outside 30
18.09.17.05 15.07.07.01 K&E 4081-3 Log Log Duplex Decitrig sn774036 (1939) in brown leather sleeve. LL0, LL00, K, A [ B, T Cot, ST, S Cos ] D, DI, K
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
New Improved Cursor. No KERCS. Sleeve intact. Sleeve has “Penn State” on outside 30
18.04.06.23 15.07.07.01 K&E 4081-3 Log Log Duplex Decitrig sn466804 (1954) Black Leather Sleeve LL01, L, K, A [ B, T Cot, ST, S Cos ] D, DI, LL1
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2
Updated scale set. New Improved Cursor. Crack in one cursor block. Sleeve intact. Name on Sleeve 20
18.04.06.17 09.10.27.01 K&E N4083-3 Log Log Duplex Vector S/N 739064 1948 Black Leather Sleeve w/belt loop in box/ L, LL01, LL1, A [ B, T Cot, ST, S Cos ] D, Th, Sh2, Sh1
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2
New Improved Cursor. Notice Scale set. No KERCS. Sleeve intact. No markings 40

Sheet 3: Circular

Ascension # Reference Comparable Image Ref # Brand and Model No. Scales Description Dona-tion?