• 455 Martinson, Los Angeles
  • 8 (043) 567 - 89 - 30
  • support@email.com
  • ARISTO 90117 specially commissioned Aqua-Math for calculating the water content of tobacco leaves
  • ARISTO 90107 specially commissioned model for calculating the lifespan of filament lightbulbs
  • Koch, Huxhold & Hannemann (KHH) - made the surprising System Korte slide rule that does addition & subtraction
  • Smallwood Folding Shoe Sizing Stick in metric for French shoe sizes 10-48 in increments of a Paris point (⅔ cm)
  • Lawrence MIT Antenna slide rule for radar antenna performance was classified during WWII by UK & US governments
  • ALRO-made ruler unusually with a cursor for analysing ECG printouts of the cardiac Sinus Rhythms
  • Hatters Gauge - for measuring the size of a hat but unusually calibrated in metric & imperial
  • Glovers Rule - for measuring the length of a glove in imperial inches
  • Unusual non-logarithmic QR 41 military model by Dennert & Pape (D&P) for training anti-aircraft gunners
  • Colour combinations slide rule made by German WH-Wohnen for Interior Designers
  • Professor Fuller’s Drum Calculator from 1878 - made by W.F. Stanley
  • Modern wristwatch with slide rule bezel calculator made by German maker Kienzle
  • Ruxton made Multi-Vider combined drop-lead pencil & slide rule
  • Rare Otis King Model N for Retail & Monetary with white scales (422 & 424) on a black background
  • Darnley’s Rotable Lightning Calculator/Pencil Case calculating aid
  • Makeba made Kombinator combination pencil & slide rule
  • Rare Carbic-made Fischer Calculator slide rule
  • Specialist slide rule for a national home cable radio broadcasting system offered in The Netherlands from 1930 to1970
  • Smallest drum (≈ 2.4m) made by renowned Swiss maker LOGA

Search my slide rule collection

Search by maker

Search by keyword

Tip: separate keywords (implict AND) by a space or a comma and if needed, limit the search by adding keywords proceeded by a hyphen: e.g. -Faber, -plastic. Phrases in quotes may also be used.

Search papers

Interested in finding out more out about such calculating wonders? Then try one of the slide rule related articles (often light-hearted) I have published.
Go to the search papers page.

No Search Results with Gasiorowski, K. Polyflo Computer Co. PIGNONE SUD EXPOGRAPHIQ Crowe Name Plate and MFG. Co. Technical Operations Inc. Sillcocks-Miller Co. ThinkGeek Mercator Allegheny Plastic Inc. CWI (Centrum Wiskunde & Informatica) Betta Manufacturing Co. Schiffmann Luftfahrtverlag GmbH G. Felsenthal & Sons Inc. SanTech Inc. PERRYGRAF AIRTOUR/POOLEYS Flight Equipment Ltd. Weems System of Navigation London Name Plate Mfg. Co. Ltd. H.C. Lange ANOXAL INPLASTOR Jepprsen & Co. Kane Aero Co. Warner Instrument & Sales Co. Revere Corp. of America American Blueprint Co. Gisholt Machine Co. Parisian Novelty Co. Foxboro Co. B.F. Grizzle Markes & Co. Meiwa Addo (AB) Summira GmbH Things of Science (Cambridge) Ltd. Weems & Plath Inc. DuPont RUYI (Si Da Rule Factory) SANTOK / SANTOKU PENOL Griffin & Co. Ltd. (Charles) TEKNOR Color Wheel Company US Navy Hydrographic Office AstroCart David Chandler Co. George Philip & Son Ltd. PlantijnCasparie E. Gundlach AG Adix Company Brevetti Lanza Reliable Typewriter & Adding Machine Corp. National Rechenwalze, A.G. Billeter, Julius & Ernst Contina AG / CURTA Oahu Publishing Co. DEVCO (Device Development Co.) M & M Enterprises MuseLab Inc. Rodgers, J.N. Ltd. Trebb Sales Datalizer Slide Charts Inc. Trascacco Norwood Enterprises Mears, Neal F. Aero Products Research Inc. KOSMOS SHUBB Kembo-Cuisenaire COX & STEVENS Aircraft Corp. Muziekuitgeverij van Teeseling Stichting Jazz Beheer Amsterdam Cooper, Charles T. & Sons (Ltd.) Co Atpress Uitgeversmaatschappij Interland Véma Drukwerk bv Music Rule Co. Pan American Band Int. Co. Musigraph Company Oxford University Press Waltman Jr., J. Smallwood, I & D (John & Daniel) Clements Newling & Co. Ltd. Booth, W. & Co. Johann Faber GILL, Thomas & Co. Oertling, Ludwig Burrows, W. & J. Long, Joseph Lumley, L. & Co. Buss, Thomas Odempsey Bate, Robert Brettell Grove, W. LOFTUS, William R. Meierhofer (Hans) Logomat Rechengeräte Albert Martz Philips Electrical Ltd. Rudolf Bauer & Co.