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Vintage C-Thru Ruler Co. PC-81 Circular Slide Rule - PROFIT COMPUTER

Vintage C-Thru Ruler Co. PC-81 Circular Slide Rule - PROFIT COMPUTER

$24.95$12.47

VTG C-Thru Ruler Co Engineers Scale Alvin 247 P Three Sided Triangular Ruler

VTG C-Thru Ruler Co Engineers Scale Alvin 247 P Three Sided Triangular Ruler

$13.49$6.75

Vintage C-Thru Ruler Co Folding Arm Parallel Nautical Drafting Tool 15" USA

Vintage C-Thru Ruler Co Folding Arm Parallel Nautical Drafting Tool 15" USA

$16.95$8.47

C-Thru 8ths Graph Beveled Transparent Rulers 2 in. x 18 in. no. b-85,USA SALE

C-Thru 8ths Graph Beveled Transparent Rulers 2 in. x 18 in. no. b-85,USA SALE

$9.99$5.00

C-Thru Ruler Co 15" Hinged Adjustable Parallel Ruler Drafting Navigation USA

C-Thru Ruler Co 15" Hinged Adjustable Parallel Ruler Drafting Navigation USA

$7.95$3.98

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

$14.00$7.00

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

$14.99$7.50

The C-Thru Ruler Co. TS-657 Triangular Ruler 12 Inch

The C-Thru Ruler Co. TS-657 Triangular Ruler 12 Inch

$9.99$5.00

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale see pics

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale see pics

$9.50$4.75

The C-THRU RULER Co USA Vintage Drafting Tool Adjustable Parallel 18" Line Bar

The C-THRU RULER Co USA Vintage Drafting Tool Adjustable Parallel 18" Line Bar

$25.99$12.99

The C-Thru Ruler Co. A-29 SCS AT 660 DOT EQUALS 1/10 ACRE 6"

The C-Thru Ruler Co. A-29 SCS AT 660 DOT EQUALS 1/10 ACRE 6"

$12.00$6.00

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12”

$14.95$7.47

(8) 3.5” Diameter See Through Plastic Protractor #255 C-Thru Ruler Co

(8) 3.5” Diameter See Through Plastic Protractor #255 C-Thru Ruler Co

$19.99$9.99

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale see pics

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale see pics

$10.95$5.47

Vintage Lot The C-Thru Ruler Co. TS-657/TS-656 Engineer Triangular 12" Scale

Vintage Lot The C-Thru Ruler Co. TS-657/TS-656 Engineer Triangular 12" Scale

$18.99$9.49

The C-Thru Ruler Co. 1500 18" Clear w/ Original Box - YY

The C-Thru Ruler Co. 1500 18" Clear w/ Original Box - YY

$17.50$8.75

engineer scale divider the c thru ruler co

engineer scale divider the c thru ruler co

$12.00$6.00

The C-Thru Ruler Co 15" Adjustable Folding Parallel Ruler Vintage

The C-Thru Ruler Co 15" Adjustable Folding Parallel Ruler Vintage

$14.00$7.00

The C-Thru Ruler Co. 12" Hinged Parallel Drafting Rule, Bloomfield, Conn. USA

The C-Thru Ruler Co. 12" Hinged Parallel Drafting Rule, Bloomfield, Conn. USA

$13.45$6.72

Vintage C-Thru Ruler Co Clear Plastic Metric W-20 NOS 15 Centimeter 6 Inches

Vintage C-Thru Ruler Co Clear Plastic Metric W-20 NOS 15 Centimeter 6 Inches

$11.69$5.84

C-THRU RULER COMPANY Round 6" Diam PROPORTIONAL SCALE PS 79 Made in USA

C-THRU RULER COMPANY Round 6" Diam PROPORTIONAL SCALE PS 79 Made in USA

$6.50$3.25

Vintage C-Thru Ruler Co Hartford Conn Adjustable Parallel 15" Drafting or Tool

Vintage C-Thru Ruler Co Hartford Conn Adjustable Parallel 15" Drafting or Tool

$20.00$10.00

C-THRU RULER COMPANY Protractor Plotter C 72 Approx. 4" x 15" w Original Sleeve

C-THRU RULER COMPANY Protractor Plotter C 72 Approx. 4" x 15" w Original Sleeve

$8.99$4.50

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12” NICE

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 12” NICE

$8.99$4.50

Vintage C-Thru T-Square Ruler, 12in Plastic C-Thru Ruler Co. Bloomfield, CT USA

Vintage C-Thru T-Square Ruler, 12in Plastic C-Thru Ruler Co. Bloomfield, CT USA

$10.00$5.00

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 15" & 18"

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 15" & 18"

$6.00$3.00

C Thru Ruler co. S-96 square root cube root round ruler Made in USA

C Thru Ruler co. S-96 square root cube root round ruler Made in USA

$15.00$7.50

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 W/Instructions

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 W/Instructions

$9.99$5.00

The C-Thru Ruler Co. 1500 18" Clear

The C-Thru Ruler Co. 1500 18" Clear

$10.80$5.40

C-Thru Ruler Company Graph Ruler B-80

C-Thru Ruler Company Graph Ruler B-80

$9.19$4.59

C-Thru Pro Triangle Ruler Company C Thru Set Lot Bundle - P450 10" - S390 - S450

C-Thru Pro Triangle Ruler Company C Thru Set Lot Bundle - P450 10" - S390 - S450

$26.95$13.47

C-THRU RULER CO. HARTFORD CONN. USAPARALLEL RULE CLASS B 12"

C-THRU RULER CO. HARTFORD CONN. USAPARALLEL RULE CLASS B 12"

$32.50$16.25

Engineer Architect Triangular 12" Ruler - The C-Thru Ruler Co.TS-658 - Mutlcolor

Engineer Architect Triangular 12" Ruler - The C-Thru Ruler Co.TS-658 - Mutlcolor

$8.95$4.47

C-Thru Ruler Co TS-656 Architect Engineer 12" Drafting Tool Triangular Tri Color

C-Thru Ruler Co TS-656 Architect Engineer 12" Drafting Tool Triangular Tri Color

$19.95$9.97

C-Thru Ruler Co. Time Speed Distance Estimator TSD-400

C-Thru Ruler Co. Time Speed Distance Estimator TSD-400

$10.45$5.22

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel

$15.00$7.50

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 15" Line Bar

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 15" Line Bar

$15.95$7.97

Vintage C-Thru Ruler Co Office Layout Template No. T-804

Vintage C-Thru Ruler Co Office Layout Template No. T-804

$4.99$2.50

Vintage C Thru Ruler Co Rolling Plotter P 72 Made In The USA

Vintage C Thru Ruler Co Rolling Plotter P 72 Made In The USA

$14.00$7.00

C-Thru Ruler Co PS-80 Proportional Scale for Image, Drafting, Graphic Design

C-Thru Ruler Co PS-80 Proportional Scale for Image, Drafting, Graphic Design

$10.84$5.42

The C-Thru Ruler Co. USA, 15" Clear Ruler

The C-Thru Ruler Co. USA, 15" Clear Ruler

$19.99$9.99

C-thru Ruler Company Model F1-100M Lot Of 5

C-thru Ruler Company Model F1-100M Lot Of 5

$15.00$7.50

Set of 2 Engineer Architect Triangular 12" Rulers - The C-Thru Ruler Co.TS-658

Set of 2 Engineer Architect Triangular 12" Rulers - The C-Thru Ruler Co.TS-658

$8.00$4.00

Vintage The C-Thru Ruler Co. TS-657 Drafting Tool Engineer Architect 15"

Vintage The C-Thru Ruler Co. TS-657 Drafting Tool Engineer Architect 15"

$14.95$7.47

The C-Thru Ruler Co. 24" Hinged Parallel Drafting Rule, Hartford, Conn. USA #L1

The C-Thru Ruler Co. 24" Hinged Parallel Drafting Rule, Hartford, Conn. USA #L1

$13.99$7.00

Vintage C-Thru T-Square Ruler, 12in Plastic C-Thru Ruler Co. Bloomfield, CT (N1)

Vintage C-Thru T-Square Ruler, 12in Plastic C-Thru Ruler Co. Bloomfield, CT (N1)

$11.99$6.00

VTG The C-Thru Ruler Co. 15” Hinged Parallel Drafting Ruler Bloomfield Conn. USA

VTG The C-Thru Ruler Co. 15” Hinged Parallel Drafting Ruler Bloomfield Conn. USA

$9.00$4.50

C-Thru Ruler Co ARCHITECTURAL Template #T-806 SCALE 1/4"=1 Foot NEW!!

C-Thru Ruler Co ARCHITECTURAL Template #T-806 SCALE 1/4"=1 Foot NEW!!

$8.00$4.00

B15 Vintage C-Thru Ruler Co 18" Clear Plastic Parallel Line Ruler

B15 Vintage C-Thru Ruler Co 18" Clear Plastic Parallel Line Ruler

$18.00$9.00

General Graphic Company Oakland Ca. Proportional Scale - The C-Thru Ruler Co.

General Graphic Company Oakland Ca. Proportional Scale - The C-Thru Ruler Co.

$8.99$4.50

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 15"

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 15"

$19.00$9.50

Vtg C-Thru Ruler Co Proportional Scale Circular Slide Rule PS 69 5" Round USA

Vtg C-Thru Ruler Co Proportional Scale Circular Slide Rule PS 69 5" Round USA

$3.00$1.50

Vintage C-THRU RULER Company Proportional Scale No. PS 79 Lot of 2 (two)

Vintage C-THRU RULER Company Proportional Scale No. PS 79 Lot of 2 (two)

$7.25$3.63

C-Thru Ruler Company Standard Graphic Arts Ruler 18" GA-86 Vintage Made in USA

C-Thru Ruler Company Standard Graphic Arts Ruler 18" GA-86 Vintage Made in USA

$10.00$5.00

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 15”

The C-Thru Ruler Co USA Drafting Nautical Tool Adjustable Parallel 15”

$13.59$6.79

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar - Marine Navigation

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar - Marine Navigation

$6.59$3.29

MiniBetter Letter (C-Thru Ruler Co) M2 Dry Transfer Lettering Gold Numbers 1/8"

MiniBetter Letter (C-Thru Ruler Co) M2 Dry Transfer Lettering Gold Numbers 1/8"

$10.00$5.00

Vintage The C-Thru Ruler Co.TS-651 WOOD Divided Engineer Triangular 12" Japan

Vintage The C-Thru Ruler Co.TS-651 WOOD Divided Engineer Triangular 12" Japan

$15.25$7.63

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting No Box

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting No Box

$13.00$6.50

The C-Thru Ruler Co. USA Drafting Tool Adjustable Parallel 18" Line Bar Rare Vtg

The C-Thru Ruler Co. USA Drafting Tool Adjustable Parallel 18" Line Bar Rare Vtg

$19.89$9.95

C-THRU RULER COMPANY Folding Parallel Rulers 1500-15" and 1500-12" 2 Rulers Lot

C-THRU RULER COMPANY Folding Parallel Rulers 1500-15" and 1500-12" 2 Rulers Lot

$28.04$14.02

Vintage The C-Thru Ruler Co. USA Drafting Tool Adjustable Parallel 18" Line Bar

Vintage The C-Thru Ruler Co. USA Drafting Tool Adjustable Parallel 18" Line Bar

$19.89$9.95

🔥Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting Tool🔥

🔥Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting Tool🔥

$8.79$4.39

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting

$10.00$5.00

Vintage The C-Thru Ruler Co. TS-656 Tirangular Engineer 12" Ruler

Vintage The C-Thru Ruler Co. TS-656 Tirangular Engineer 12" Ruler

$9.99$5.00

C-Thru Ruler Company Proportional Scale PS 69 • Vintage Wheel Gauge

C-Thru Ruler Company Proportional Scale PS 69 • Vintage Wheel Gauge

$7.28$3.64

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar - Marine Navigation

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar - Marine Navigation

$6.99$3.50

2 Vintage C-Thru Ruler Company Hartford Conn. USA Engineers Printers Engravers

2 Vintage C-Thru Ruler Company Hartford Conn. USA Engineers Printers Engravers

$22.50$11.25

Vintage C-Thru Ruler Co B-87 Business Forms Ruler 18 3/8" long - Rare

Vintage C-Thru Ruler Co B-87 Business Forms Ruler 18 3/8" long - Rare

$14.99$7.50

C-Thru Ruler Co Architects Scale TS-654 Drafting Vintage Triangular With Cover

C-Thru Ruler Co Architects Scale TS-654 Drafting Vintage Triangular With Cover

$20.00$10.00

Vtg C-Thru Ruler Company Pocket Slide Rule No. 27 with sleeve & instructions

Vtg C-Thru Ruler Company Pocket Slide Rule No. 27 with sleeve & instructions

$18.00$9.00

VTG C-Thru Ruler Co. Pink Plastic Ruler Template PA-630A 12" Made in USA

VTG C-Thru Ruler Co. Pink Plastic Ruler Template PA-630A 12" Made in USA

$14.99$7.50

C-Thru Ruler Co PS-80 Proportional Scale Fractions Math Bloomfield CT

C-Thru Ruler Co PS-80 Proportional Scale Fractions Math Bloomfield CT

$6.00$3.00

The C-Thru Ruler Co. 15" Hinged Parallel Drafting Rule, Hartford, Conn. USA

The C-Thru Ruler Co. 15" Hinged Parallel Drafting Rule, Hartford, Conn. USA

$14.99$7.50

The C-Thru Ruler Co 15 inch Adjustable Hinged Parallel Line Drafting Rule Tool

The C-Thru Ruler Co 15 inch Adjustable Hinged Parallel Line Drafting Rule Tool

$12.00$6.00

C-Thru Ruler Company Vintage Pocket Slide Rule No. 27 W/Instructions

C-Thru Ruler Company Vintage Pocket Slide Rule No. 27 W/Instructions

$10.99$5.50

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting Tool

Vintage The C-Thru Ruler Co Adjustable Parallel 15" Line Bar- Drafting Tool

$17.99$8.99

Vintage, THE C-THRU RULER CO. TS-657 Architect Scale, 3 Sided, White With Black

Vintage, THE C-THRU RULER CO. TS-657 Architect Scale, 3 Sided, White With Black

$13.59$6.79

MiniBetter Letter (C-Thru Ruler Co) M8 Dry Transfer Lettering Yellow Letter 1/4”

MiniBetter Letter (C-Thru Ruler Co) M8 Dry Transfer Lettering Yellow Letter 1/4”

$10.00$5.00

Vintage c-thru ruler co. 180 degrees - Protractor

Vintage c-thru ruler co. 180 degrees - Protractor

$15.20$7.60

Vintage The C-Thru Ruler Co PS-80 Proportional Scale EUC A-2 USA.

Vintage The C-Thru Ruler Co PS-80 Proportional Scale EUC A-2 USA.

$6.00$3.00

VTG C-Thru Ruler Co. Hartford Conn USA Drafting Adjustable Parallel Line Bar

VTG C-Thru Ruler Co. Hartford Conn USA Drafting Adjustable Parallel Line Bar

$8.99$4.50

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale

Vintage The C-Thru Ruler Co.TS-657 Engineer Triangular 12" Scale

$9.77$4.88

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 In Case & Instructions USA

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 In Case & Instructions USA

$17.52$8.76

C-Thru Ruler Company Proportional Scale PS 69 • Vintage Wheel Gauge

C-Thru Ruler Company Proportional Scale PS 69 • Vintage Wheel Gauge

$10.00$5.00

Vintage C-Thru Ruler Company Course Protracting Plotter P-72 4" x 15" USA

Vintage C-Thru Ruler Company Course Protracting Plotter P-72 4" x 15" USA

$7.49$3.75

Deja Views By C-Thru Ruler Company PA-620A & PA-620B Designs

Deja Views By C-Thru Ruler Company PA-620A & PA-620B Designs

$5.00$2.50

C-Thru Ruler Company Better Letter Dry Transfer Lettering - 13 Packages in Box

C-Thru Ruler Company Better Letter Dry Transfer Lettering - 13 Packages in Box

$49.99$25.00

C-Thru Ruler Company 680 Metal Pantograph

C-Thru Ruler Company 680 Metal Pantograph

$21.99$10.99

C-Thru Ruler Company Graph Ruler B-60 Lot of 6

C-Thru Ruler Company Graph Ruler B-60 Lot of 6

$17.95$8.97

The C-Thru Ruler Co. Hartford Conn USA- Adjustable Parallel 15" Drafting Tool

The C-Thru Ruler Co. Hartford Conn USA- Adjustable Parallel 15" Drafting Tool

$18.99$9.49

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 12" Line Bar

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 12" Line Bar

$17.10$8.55

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 In Case & Instructions USA

Vintage C-Thru Ruler Company Pocket Slide Rule No. 27 In Case & Instructions USA

$11.69$5.84

2 Piece Plastic Drawings Templates Measuring Templates IBM C-Thru Ruler Company

2 Piece Plastic Drawings Templates Measuring Templates IBM C-Thru Ruler Company

$12.00$6.00

Vintage c-thru ruler co. 4 1/4 INCH LONG, with ANGLES

Vintage c-thru ruler co. 4 1/4 INCH LONG, with ANGLES

$15.20$7.60

2 Vtg Missile & Space Electronics T-815 By C-Thru Ruler Co USA & Isometric 5004

2 Vtg Missile & Space Electronics T-815 By C-Thru Ruler Co USA & Isometric 5004

$32.50$16.25

C-Thru Ruler Company Compass & Divider Set

C-Thru Ruler Company Compass & Divider Set

$14.99$7.50

6" PLASTIC TYPOGRAPHIC RULER C-THRU RULER COMPANY

6" PLASTIC TYPOGRAPHIC RULER C-THRU RULER COMPANY

$2.99$1.50

The C-Thru Ruler Co. Craft & Hobby Knife w/ 2 sets of spare snap of blades U-480

The C-Thru Ruler Co. Craft & Hobby Knife w/ 2 sets of spare snap of blades U-480

$9.99$5.00

c-thru ruler 2" x 18" (inches in 8ths) B-85 Zero centering scale & Laminated usa

c-thru ruler 2" x 18" (inches in 8ths) B-85 Zero centering scale & Laminated usa

$9.99$5.00