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WAVIN SLIDE RULE PIPE FLOW CALCULATION FRICTION COMPUTER IMPERIAL METRIC CONVERT
PrivateEUR 23.241 bidEUR 21.49 postageEnding Today at 9:14PM GMT1m 6sVintage A G Thornton Military Draughtsman Drawing Compass Set Boxed Utility Mark
PrivateEUR 15.736 bidsEUR 15.33 postageEnding Dec 15 at 7:31PM GMT4d 22hantique compass set leather Box Technical Drawing Instruments.
PrivateEUR 17.460 bidsEUR 16.51 postageEnding Dec 12 at 11:20AM GMT1d 14hRotring Technical Drawing Set In Case
BusinessEUR 11.652 bidsEUR 16.19 postageEnding Dec 12 at 4:36PM GMT1d 19hAntique Engineers Surveyors Instrument Compass
PrivateEUR 1.150 bidsEUR 16.19 postageEnding Dec 15 at 4:00PM GMT4d 18hVintage Technical Designs P.C. Designer Series Drafting Template
PrivateEUR 5.811 bidEUR 13.41 postageEnding Today at 10:08PM GMT55m 0sVintage Kern Swiss Surveying Survey Target Set Surveyors Tool
BusinessEUR 1.151 bidEUR 21.48 postageEnding Dec 12 at 7:29PM GMT1d 22hVintage 1930's E.R. Watts & Sons London BRASS Surveyors Theodolite - boxed
BusinessEUR 168.91EUR 26.27 postageJ. CASARTELLI Manchester Vintage Precision Engineered BRASS THREAD COUNTER
PrivateEUR 11.641 bidEUR 17.31 postageEnding Dec 13 at 8:17PM GMT2d 23hNew listing2 x Cased Vintage Technical Drawing Instruments Compasses Etc - Jakar / Riefler
BusinessEUR 1.150 bidsEUR 20.58 postageEnding Dec 17 at 8:23PM GMT6d 23hNew listingVintage Lawrence Engineering Wabash Made In USA Wood Slide Ruler Scientific
BusinessEUR 1.150 bidsEUR 14.14 postageEnding Dec 17 at 8:20PM GMT6d 23h- SPONSORED
Rare Controller 75 R Circular Slide Rule inc. instruction manual (copy) & case
BusinessEUR 81.43EUR 18.64 postageSPONSORED- SPONSORED
New listingA Vintage A. Ott Planimeter Type 30115
PrivateEUR 11.650 bidsEUR 15.52 postageEnding Dec 17 at 8:15PM GMT6d 23hWild Heerbrugg Riefler RZP 31 Professional Stainless Steel Compass Set EB
BusinessEUR 29.111 bidEUR 28.66 postageEnding Dec 11 at 3:59PM GMT18h 46mNew listing2 Vintage, 12" Wooden Rolling Rulers & a Parallel Rule.
PrivateEUR 17.460 bidsEUR 17.78 postageEnding Dec 17 at 7:15PM GMT6d 22hVintage GKO Kern Aarau Levelling Instrument with Case
BusinessEUR 11.590 bidsEUR 16.08 postageEnding Dec 13 at 10:24AM GMT2d 13hAntique box of Stanley brass drawing instruments.
BusinessEUR 17.471 bidEUR 17.79 postageEnding Dec 16 at 12:20PM GMT5d 15hE.R. WATTS & Son Ltd. Early Theodolite Plus Stanley Brass Surveyors Cross.
BusinessEUR 80.38EUR 22.12 postageNew listing WW2 1945 ARCLIGHT REVIEW DRAWING PHOTOGRAPHY ARCHITECTURE HANDBOOK COLCHESTER
PrivateEUR 75.720 bidsEUR 19.56 postageEnding Dec 17 at 8:12PM GMT6d 22hGood SET ANTIQUE VICTORIAN MAHOGANY CASE DRAWING INSTRUMENTS
PrivateEUR 64.06EUR 20.36 postage16 watchingNew listingJob Lot of Vintage Technical Drawing Instruments / Compasses / Pencils Etc
BusinessEUR 1.150 bidsEUR 24.44 postageEnding Dec 17 at 8:04PM GMT6d 22hNew listing1912 NORTON & GREGORY VELOGRAPHY CHARLES RENNIE MACKINTOSH DRAWING SURVEYING
PrivateEUR 29.120 bidsEUR 13.68 postageEnding Dec 17 at 8:04PM GMT6d 22hNew listingRotring Germany - Pencil Bow, Ink Bow - Vintage compass
PrivateEUR 10.480 bidsEUR 13.19 postageEnding Dec 17 at 7:45PM GMT6d 22hNew listingVintage Drawing Board Dark Wood Sprung Legs 60x40x23cm H9
BusinessEUR 6.930 bidsEUR 15.71 postageEnding Dec 17 at 8:34PM GMT6d 23hVintage Brass Survey Theodolite Alidate Telescope Compass Joined Marine Decor
BusinessEUR 39.40EUR 4.30 postageSPONSOREDVintage Stanley Draftsman Set Mathematical Instruments Drawing Drafting Tools "1
BusinessEUR 278.41Free postageSPONSORED- SPONSORED
Brass 15" Theodolite-Transit Surveyors Alidade Vintage Surveying Instrument
PrivateEUR 300.40Was: EUR 316.22Free postageSPONSOREDVintage Alidade Drafting Instrument Tool London Surveying Plane Table Sight Rule
BusinessEUR 1.151 bidEUR 21.48 postageEnding Dec 12 at 7:27PM GMT1d 22hNew listingVintage Helix Brass Compass drawing compass school compass instrument
BusinessEUR 1.150 bidsEUR 15.76 postageEnding Dec 20 at 8:40PM GMT9d 23hNew listingANTIQUE BOXED SET TECHNICAL DRAWING DRAFTSMAN INSTRUMENTS LILLEY & SON LONDON
PrivateEUR 46.580 bidsEUR 16.89 postageEnding Dec 17 at 6:06PM GMT6d 20hNew listingFolding 9" / 18" Boxwood Bass Sector Rule Ruler
BusinessEUR 75.720 bidsEUR 13.73 postageEnding Dec 17 at 8:02PM GMT6d 22hVintage Ecobra Technical Drawing Set Boxed Ten Pieces Made In Germany
PrivateEUR 11.640 bidsEUR 17.59 postageEnding Dec 14 at 2:13PM GMT3d 16hVintage Brass Survey Theodolite Alidate Telescope Compass Joined Marine Decor
BusinessEUR 39.40EUR 4.30 postage21 soldSPONSOREDVtg Pipe Flow Calculator Liquid & Gas Mears & Co Huddersfield,England Model 3
PrivateEUR 34.27EUR 26.05 postageSPONSOREDNew listingFolding 6" / 12" Boxwood Bass Sector Rule Ruler
BusinessEUR 40.770 bidsEUR 12.67 postageEnding Dec 17 at 8:01PM GMT6d 22hNew listingVintage Parallel Rolling Rule Ruler Brass Original Box 18" Cooke Troughton Simms
PrivateEUR 17.460 bidsEUR 17.21 postageEnding Dec 20 at 8:21PM GMT9d 23hNew listingEMBLEM TS SERIES NO 1081 SLIDE RULE WITH HARD PLASTIC CASE NO INSTRUCTIONS
PrivateEUR 11.640 bidsEUR 17.37 postageEnding Dec 17 at 7:00PM GMT6d 21hJ Halden & Co Ltd 15" Brass Rolling Navigation Plotting Rule University of B'Ham
BusinessEUR 30.2913 bidsEUR 21.48 postageEnding Dec 12 at 7:21PM GMT1d 22hAntique cased multi tool drawing instument
PrivateEUR 40.770 bidsEUR 28.66 postageEnding Dec 15 at 5:07PM GMT4d 19hVintage Antique Boxed Technical Drawing Engineering Draughtsman Compass Set
PrivateEUR 26.78EUR 15.92 postage11 watchingARISTO SCHOLAR 0903 SLIDE RULE MADE IN AUSTRIA+ PLASTIC CASE+ INSTRUCTIONS &BOX
PrivateEUR 2.910 bidsEUR 16.12 postageEnding Dec 11 at 6:33PM GMT21h 19m
