Engineering

VINTAGE STERLING BRAND SLIDE RULE w CASE	2	$5.50	17m
DRAFTING TOOLS ALVIN & CO. MADE IN WEST GERMANY	-	$4.25	18m
1948 Ad Climax Molybdenum Steel Alloy Blind Man Braille - ORIGINAL ADVERTISING	-	$19.95 $37.95	19m
1948 Ad RCA Silent Tone Test Radio Television Recording - ORIGINAL ADVERTISING	-	$19.95 $40.95	19m
1923 Print Viaduct Nicholson Bridge Engineering Tunkhannock River Pennsylvania	-	$19.95 $36.95	19m
Dietzgen Maniphase Multiplex Decimal Trig Log Log Rule N1732	1	$19.95	20m
VINTAGE FREDERICK POST NO 1447 SUN HEMMI JAPAN SLIDE RULE AND CASE ~.~	-	$9.99 $25.00	20m
K&E N4048W Beginner Slide Rule	9	$19.01	20m
1958 Ad Kerite Cable Western Union Tug Boat Hudson 1880 - ORIGINAL ADVERTISING	-	$19.95 $39.95	25m
1952 Ad Air Reduction Parade Balloon Airco Engineering - ORIGINAL ADVERTISING	-	$19.95 $39.95	25m
1968 Cover Cornell Engineer Space Science Building - ORIGINAL	-	$19.95 $40.95	25m
1959 Ad Westinghouse Engineers Sam Zimmerman Missiles - ORIGINAL ADVERTISING	-	$19.95 $38.95	25m
1968 Cover Cornell Engineer Lunar Rover Master Design - ORIGINAL	-	$19.95 $37.95	25m
1952 Ad Air Reduction Project Nurse Oxygen Tank Welding - ORIGINAL ADVERTISING	-	$19.95 $40.95	25m
GENERAL SATELLITE -- AZIMUTH AND DECLINATION CHART SLIDE RULE CALCULATOR	4	$20.61	25m
Vintage 1938 Gernsback's Educational Library Simple Electrical Experiments Book	-	$4.99	25m
Keuffel & Esser K&E Paragon Poportional Dividers Excellent	4	$22.72	26m
Vtg Alvin Constructor 5022 Flat Lead Drafting Pencil NOS	1	$9.95	26m
VINTAGE GILSON CIRCULAR SLIDE RULE 1919 CASE GILSON BINARY SLIDE RULE OLD STUART	-	$19.99	26m
Vtg Koh-I-Noor 5612 Educator Drafting Pencil Italy NOS	2	$5.95	27m