Vintage Keuffel & Esser Co. Proportional Circle Line

Case measures 11 x 1.75 x 1.25 inches

Lot of two vintage slide rules. Each includes a case, one can snap shut. Each slide rule reads as KEUFFEL & ESSER CO. Includes patent info. Wear is consistent with age and use. Each measures approx 12

DESCRIPTION: Vintage Keuffel & Esser Co. log log duplex decitrig slide rule featuring marks for calculating various mathematical functions from arithmetic to trigonometry to algebra. Includes orange l

A 1966 Keuffel and Esser Co. Pocket Slide Rule in original packaging. Comes with leather sheath and instruction manual. Made in USA.

A 1966 Keuffel and Esser Co. Jet-Math slide rule #68-1576. Comes in original packaging with manual and case. Made in USA. Box measures 14 1/2" x 7". *notes- regular wear from age and storage.

A 1966 Keuffel and Esser Co. Jet-Math 68 1576 slide rule with original box, instructions and case. Slide Rule is marked 4161-3. Made in USA.

latest patent date Oct 13.91, #11437, brass mounted compass and transit, in original wooden case with leather strap, retaining interior paper label. Compass with directional dial, level. Case 15 .25 x

Lot of two vintage compass. One Keuffel & Esser Co. New York and a folding Sundial compass in brass case. Measure 1 3/4" diameter and 3" x 2" (sundial).

KEUFFEL & ESSER CO 4061 6" | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING -CONDITION ALIGNS WITH VINTAGE WEAR -CASE (DAMAGED) -HS5721

2 Vintage 1950's Leroy lettering sets by Keuffel & Esser Co. K&E. lettering sets with 18 templates (caps, lower case & numbers). Includes original wooden box & instructions.

Korean War era scope affixed on earlier US Army Corps tripod surveyor base with brass plumb bob line. A great telescope or antique optical collector object. Model X-Sam-A-7. 19 1/8" length of scope. B

ASSORTED ANTIQUE / VINTAGE COMPASSES, LOT OF FOUR, comprising a Middle Eastern brass sundial compass; two Keuffel & Esser Co.; and a Leedawl. 20th century. 5" DOA. Provenance: From

Vintage brass telescope with tripod and wooden engineering/surveying box; Telescope has a leveling device on top; Tripod has wooden legs; Box is marked "Keuffel & Esser Co. No. P5003 Serial 132871" on

Details: 11Pcs Vintage Estate Collection SOUVENIRS COLLECTIBLES & KEEPSAKES Saudi Arabian Rug Baseball Cards Marble Bookends Keuffel & Esser Co Drafting Tools US Commemorative Quarters Amethyst Cryst

Keuffel & Esser Co. Lettering Set in Box - Vintage. Size: 1.75h x 16.25L x 3.75w

Two vintage rulers. The one crafted from wood and metal is collapsible. The other is crafted from wood and composite material, KEUFFEL & ESSER CO., measures approx. 10.75L x 1.5W in. Pieces have some

KEUFFEL & ESSER CO NO. 461294 PAT. APRIL 1'24 | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING -CONDITION ALIGNS WITH VINTAGE WEAR -DAMAGED CASE (SEE IMAGES)

KEUFFEL & ESSER CO 4081-3 LOG LOG DEPLUX DECITIRIG WITH CASE PATS; 2500460, 2168056,2170144,2285722, 2422649 | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING

Groupof Antique and Vintage mostly measuring tools- Standard LS Glashart Caliper, Keuffel % Esser co Cruiser Tape Measurer, Stanley #34 Machinist Level, Starret #237 Depth Gage, etc.. Condition: Mostl

KEUFFEL & ESSER CO 4081-3 LOG LOG DEPLUX DECITIRIG WITH CASE PATS; 2500460, 2168056,2170144,2285722, 2422649 | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING

KEUFFEL & ESSER CO. NY NO. 4002-3 SLIDE RULE pAT jUNE5'00, DEC 22 '08, APRIL1 '24 | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING -CONDITION ALIGNS WITH VIN

KEUFFEL & ESSER CO NO. 4053-3 BOX CASE BOOKLETS POLYPHASE | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING -CONDITION ALIGNS WITH VINTAGE WEAR -GREAT GREEN L

LOT 2 SLIDE RULER AND SLIDE RULE BOOK CONTAINS: "THE SLIDE RULE AND LOGARITHMIC TABLES BY CLARK, PICKET n902-es SIMPLEX TRIG SLIDE RULE, KEUFFEL & ESSER CO n4053-3 PAT1,934,232 | VINTAGE COLLECTIBLE S

KEUFFEL AND ESSER CO SLIDE RULER IN LEATHER CASE Vintage slide ruler in leather carrying case made by Keuffel & Co. N.Y. Pat. June 5, 1900 *end of case has detached, name wr