Frequently Asked Questions...
Anyone know how to find out what this is worth?
I have a Keuffel & Esser tool - what I believe to be a surveyors telescope. It's in a case - model # 77 0010 Serial # 193733
I want to sell it - don't know who to contact.
Answer:
is it an antique? if so then contact the antiques roadshow website . it is www.antiqueroadshow.com. good luck .
 KEUFFEL ESSER CO., Ridgeways, Allen Engineering, WELEX, Abstract Maps, GEO-MAPS US $69.95 
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 K&E Keuffel & Esser Brass Survey Level Transit No.5691 Level 1915? box plumb bob US $149.10
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 Vintage/Old Keuffel & Esser 23 Piece Drafting set marked Paragon US $99.00
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 K&E Keuffel & Esser Paragon Drafting Machine Arm L392344 L@@K NO Reserve ! US $25.00
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 Keuffel & Esser Co. Slide Rule #4503-3 1954 - 1956 US $35.00
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 Vintage Keuffel & Esser Drafting Set Series S795 1/2 US $10.49
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 Vintage Slide Rule Wood K&E Keuffel Esser Training N4058W US $12.99
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 Slide Ruler with Leather Case Keuffel & Esser Co. US $24.99
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 Vintage Keuffel & Esser Anemometer 4 Inch No. 5958 To 100,000 Feet Leather Case US $68.77
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 VINTAGE KEUFFEL & ESSER K&E 4081-3 LOG LOG DUPLEX DECITRIG SLIDE RULE W/CASE US $29.99
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 VINTAGE KEUFFEL & ESSER CO POLYPHASE SLIDE RULE W/ORIGINAL BOX 1 PIECE MISSING US $40.00
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 VINTAGE KEUFFEL & ESSER K&E 1631W 12 INCH 6-SCALE TRIANGULAR ENGINEERING DRAFTIN US $2.95
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 Vtg 1940s Keuffel & Esser Polar Planimeter Model 4242 Engineering Drafting Tools US $36.55
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 VINTAGE KEUFFEL ESSER LEROY LETTERING SET WITH SCRIBER WOOD BOX COPYRIGHT 1950 US $9.85
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 3 Vintage Keuffel & Esser Leroy Lettering Pins, 2 Cleaning Pins US $5.99
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 Vintage K&E Leroy Lettering Set Keuffel & Esser Co. 1944 Tracing Font Wooden Box US $50.99
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 Keuffel & Esser Log Log Duplex Decitrig Slide Rule 4081-35 1947 US $24.99
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 KEUFFEL & ESSER COMPANY VINTAGE SLIDE RULE LEATHER CASE ORIGINAL K+E US $59.99
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 Keuffel and Esser 4081-3 Slide Rule US $34.00
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 2 Vintage Keuffel & Esser Lettering Set, Pens, and More US $65.00
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 VINTAGE GERMAN KEUFFEL & ESSER PLANEMETER 4237 IN ORIGINAL CASE - EXCELLENT COND US $164.99
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 Keuffel & Esser Co. slide rule 10" vintage polyphase w/leather case US $36.00
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 Antique Keuffel & Esser Co NY Polar Planimeter 2102 - Drafting Tool -Germany US $40.00
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 KEUFFEL & ESSER BOW COMPASS & BROWN SHARPE RULER DRAFTING MEASURING DRAWING US $12.99
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 1950 K & E Keuffel Esser Leroy Scriber Templates Points Original Boxes & Sleeves US $17.99
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 VTG Keuffel & Esser Polyphase 10" Slide Rule Pat 1.934.232 N4053-3 147792 GREAT US $9.99
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 KEUFFEL & ESSER 30" PARAGON DRAFTING ARM WITH ENGINEERING SCALE US $15.00
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 ORIGINAL VINTAGE KEUFFEL & ESSER CO SLIDE RULE 4058W IN CASE WITH BOOK EXCELLENT US $9.99
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 Vintage Keuffel & Esser No N4053 Polyphase Slide Rule Manual Instruction Book US $9.99
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 Vintage Keuffel & Esser 4088-3 Slide Rule Early Version US $29.99
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 Keuffel & Esser Leroy lettering set scales and case only US $10.49
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 Vintage Keuffel & Esser 12.5 Inch Slide Rule & Leather Case - Free USA Shipping US $95.00
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 K&E Keuffel & Esser Co HAND LEVEL with Green Case 7" long US $19.99
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 keuffel & Esser Paragon Jr. drafting arm US $50.00
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 Vintage Keuffel and Esser Surveyor Transit Telescope Great Scientific Optic Gift US $299.99
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 Keuffel & Esser Cartographer 1:100,000 Rule vtg KE Map Ruler Cartography Tool US $9.95
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 Vintage 1955 Keuffel & Esser SLIDE RULE MANUAL Log Log Duplex Decitrig No. 4081 US $9.99
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 Keuffel & Esser Wye Level, Late 1800's, Good Condition US $659.99
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 ==Keuffel & Esser K&E Slide Rule With Leather Case 1947 Immaculate Rule & Case== US $9.99
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 Keuffel & Esser Co. Slide Rule Copyright 1947,Doric N9081-3 in Original. Case US $9.95
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 Vintage 4 K&E Co. Ruling and Lettering Pen Keuffel & Esser With Box. US $14.50
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 K & E Auto-Flow Mark II Drafting Machine, (Keuffel & Esser), Very Good Condition US $330.00
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 VINTAGE K & E KEUFFEL & ESSER TRU POINT PENCIL LEAD POINTER SHARPENER IN BOX US $25.00
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 Vintage K&E Keuffel & Esser Anvil Drop Bow Pen & Pencil Compass Divider #914 Box US $9.99
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 Vintage Slide Ruler / Model 800 - ES Pickett & Eckel / Keuffel & Esser Ruler US $10.00
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 vintage paragon drawing pencils ( box only) keuffel and esser co. US $4.99
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 Antique Keuffel & Esser Co Transit US $80.00
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 Vintage K&E Keuffel & Esser ? Brass Survey Level Transit With Box US $125.00
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 Vintage K&E Keuffel & Esser ? Brass Survey Level Transit With Box NICE ! US $125.00
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 In Perfect Working Condition:KEUFFEL & ESSER CO #5703 Surveying Transit. US $8.99
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 KEUFFEL & ESSER MANUAL: LOG LOG DUPLEX DECITRIG - 1947 US $34.99
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 Vintage Lettering Set ** Keuffel& Esser ** + Drafting RapiDesign Template Lot US $20.00
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 KEUFFEL & Esser K&E Brass Wye Level Transit Survey #70842 Tripod & Box 18" US $349.00
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 70s KEUFFEL & ESSER K+E LEROY Green Lettering Set with great case US $39.99
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 1950'S KEUFFEL & ESSER CO. LEROY LETTERING SET WITH OAK DOVETAILED BOX US $39.99
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 Vintage Working K & E Keuffel & Esser Co. Slide Ruler 710352 Carrying Case Rules US $9.99
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 Rare 20 inch K & E Keuffel & Esser Co. #4053-5 Slide Rule with Case US $10.50
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 Vintage Keuffel & Esser Co. MerChants 68 1775 Slide Rule Box Case Instructions US $5.99
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 VINTAGE K & E KEUFFEL & ESSER TRU-POINT PENCIL LEAD SHARPENER WITH 3 REFILLS US $34.99
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 Nice Vintage Keuffel & Esser Co. Leroy Lettering Drafting Set in Wood Case US $16.99
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 Vintage Keuffel Esser Leather Case Very Good Condition US $9.99
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 DRAFTING & DESIGN TOOLS, POST DESIGNMASTER 1146C, Keuffel & Esser Co NY US $19.95
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 EARLY KEUFFEL & ESSER TRANSIT POCKET SURVEYING COMPASS w/ CASE & INSTRUCTIONS US $49.60
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 Vintage Keuffel & Esser Planimeter Kit Engineering Drafting Tools w Storage Box! US $9.99
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 Vintage Keuffel & Esser Leroy Lettering Kit with Wood Storage Box US $9.99
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 K & E KEUFFEL & ESSER CO. Compensating Polar Planimeters 4236 US $19.00
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 Vintage Wooden 12" K&E Co. Triangular Scale Keuffel & Esser Star Quality US $9.99
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 Vintage Slide Rule Collection * POST & Keuffel Esser US $9.99
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 13 PIECES Keuffel & Esser Anvil Kit - Drafting Compass US $49.95
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 Keuffel & Esser Co. Straightedge w/Rollers Vintage Drafting nautical rule 24" US $599.00
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 Vintage K & E ( Keuffel & Esser ) Paragon Drop Bow Pen & Pencil - 4 Inch US $13.99
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 Vintage Used Keuffel & Esser Co 1944 Working Slide Rule Ruler Calculator Tool NR US $19.99
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 Keuffel and Esser K & E Electric Eraser for drafting with extra erasers US $9.95
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 1934 Keuffel & Esser Co. K & E Slide Rule 4092-3 in Leather Case US $10.00
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 1947 KEUFFEL & ESSER LOG LOG DUPLEX DECITRIG 68 1210 SLIDE RULE & Case US $10.00
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 Vintage Keuffel & Esser Co. N.Y. 6.5 inch ruler with leather case US $.99
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Keuffel Esser
Keuffel & Esser slide rule
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