Blundell Luton Type G.1 Bakelite General Slide Rule.
Blundell Luton AG.1 Astralon General Slide Rule
Blundell Luton Type G.2 Bakelite General Slide Rule.
Blundell Rules Limited AG.2 Astralon General Slide Rule
Blundell Luton Type E.3 Bakelite Electrician's Slide Rule.
Blundell Luton Type L.4 Bakelite Log-Log Slide Rule
Blundell Rules Limited AL.4 Astralon Log-Log Slide Rule
Blundell Rules Limited AG.5 Astralon General Slide Rule
Blundell Rules Limited AL.6 Astralon Log-Log Slide Rule
Blundell Rules Limited U.7 Bakelite Slide Rule.
Blundell Rules Limited P.8 Bakelite Slide Rule
Blundell Rules Limited P.10 Astralon Slide Rule.
Blundell Rules Limited T.11 Astralon Slide Rule.
Blundell Rules Limited T.12D Astralon Slide Rule. This has a moulded Diakon cursor hence 12D instead of just 12.
Blundell Rules Limited E.13 Astralon Slide Rule.
Blundell Rules Limited P.14D Astralon Slide Rule. This has a moulded Diakon cursor hence 14D instead of just 14.
Blundell Rules Limited P.15 Astralon Slide Rule.
Blundell Rules Limited P.16 Astralon Slide Rule.
Blundell Rules Limited P.17 Astralon Slide Rule.
Blundell Luton AE.18 Astralon Electrician's Slide Rule
Blundell Rules Limited P.19 Astralon Slide Rule.
Blundell Rules Limited P.19D Astralon Slide Rule. This should have a Diakon cursor as seen in the P.14D above.
Blundell Rules Limited G.22-2 Astralon General Slide Rule.
Blundell Rules Limited D.26. Seen on Ebay.
Blundell Rules Limited, G.27 Astralon General Slide Rule.
Blundell Rules Limited, G.27X Astralon General Slide Rule.
Blundell Rules Limited P28, Astralon Darmstadt Slide Rule.
Blundell Rules Limited, G.29 Astralon General Slide Rule.
Blundell Rules Ltd, Janus Series T.50. This rule also has the U.K.A.E.A label, The United Kingdom Atomic Energy Authority.
Blundell Rules Ltd. PG54.
Blundell Harling Ltd. PG 54-2 Photographic Interpreters Slide Rule MkII.
Blundell Rules Ltd, Janus Series, Tarrant Hydraulic Slide Rule, HF 55. Flow in Open Channels on one side, Flow in Pipes and Circular Sewers on the other. Copyright by J.Tarrant A.M.I.C.E M.I.MECH.E Supplied by the Paterson Engineering Company Limited, London, England
Blundell Rules Ltd, Janus Series, Multilog Vector, JV56.
Blundell Rules Limited Student No.1.
Blundell Rules Limited Student No.2, Log-Log.
Blundell Popular No.1.
Blundell Popular No.2.
Blundell S100.
Blundell S.141.
Blundell Harling S143-5E Slide Rule
Blundell Harling S143-10 Slide Rule
Blundell Harling S143-20 Slide Rule
Blundell Harling S150-10 Slide Rule.
Blundell Harling S150-20 Slide Rule.
Blundell Rules Limited Academy 300 Slide Rule
Blundell Rules Limited Academy 302 Log-Log Slide Rule.
Blundell Rules Limited Academy 302 Log-Log Slide Rule. This is a slight variation on the previous 302. The Trade Marks are in different positions.
Blundell Rules Limited Academy 303 Rietz Slide Rule
Blundell Rules Limited Academy 304 Darmstadt Slide Rule
Blundell Academy 305 Electro.
Blundell Academy 306, Tarrant Hydraulic Slide Rule, Flow in Pipes and Circular Sewers, based on the Hazen Williams Formula.
Blundell Academy 307 Air Navigation.
Blundell Rules Limited Academy 308 Accountants Slide Rule.
Blundell Rules Limited Academy 309 Standard Slide Rule. The British Institute of Engineering Technology.
Blundell Rules Limited Academy 310 Circular Slide Rule.
Blundell Rules Limited Academy 312A.
Blundell Omega 401 Rietz Slide Rule
Blundell Omega 402 Log-Log Slide Rule
Blundell Omega 403 Darmstadt Slide Rule
Blundell Rules Limited Omega 404 Electro Slide Rule
Blundell Omega 405.
Blundell Omega 406.
Blundell Rules Limited Omega 407 Technico Slide Rule
Blundell Rules Limited Omega 409 Mercantile Slide Rule.
Blundell Academy Duplex 500.
Blundell Academy Duplex 502.
Blundell Academy Duplex 503D.
Blundell Academy Duplex 505. The scale set on the front side is similar to the Yokota scale described below.
Blundell Academy Duplex 506.
Blundell A505 Super Duplex. The scale set on the front side is similar to the Yokota scale patented by Seinan Yokota, Assistant Professor of Naval Architecture at the College of Engineering, Imperial University, Tokyo, Japan in 1907 and consists of LL3 LL2 LL1 A/B K C/D LL01 LL02 LL03 with S Sec T on the reverse of the slide.
Blundell A506 Super Duplex.
Blundell Harling 600
Blundell Omega 601 Rietz
Blundell Omega 602 Log-Log.
Blundell Omega 603 Darmstadt
Blundell Omega 605
Blundell Omega 606
Blundell 800.
Blundell Harling 802 Log Log. This version has a K scale added at the top and the L scale moved onto the slide.
Blundell Harling 803 Rietz.
Blundell Harling 804 Darmstadt.
Blundell 808 Accountants Slide Rule.
Blundell Harling Classmate 812
Blundell Harling Classmate 813
Blundell Harling 904 Duplex
Blundell Harling 905 Academy Duplex
Blundell Harling Limited, Arkon Flow Rule for estimating flow in open channels for Arkon Instruments Ltd, Cheltenham, England.
Blundell Rules Limited, Bilham Humidity Slide Rule, MKIII. MO 1312-51 (Meteorological Office), Met.Ref.No.1036.
Blundell Rules Limited Blakeborough Valve Sizing Slide Rule.
Blundell Harling Limited Fisher Universal Valve Sizing Slide Rule (US Units) FC.3540. Fisher Controls Company Marshalltown, Iowa, U.S.A. Fisher Controls Limited, Maidstone, Kent, England.
Blundell Holophane Illumination Calculator.
Blundell Pilot Baloon Slide Rule Mark 5, Met Ref No. 29550
Blundell Harling Ltd. Portland Dead Reckoning Calculator Patent. No. 1 530 487, Cat. No. 0655.33 (1084).
Blundell Harling Ltd. Portland Speed-Time-Distance Calculator Cat. No. 0655.31
Blundell Rules Limited Radiac Slide Rule for Nuclear Fission Products, Admiralty Research Laboratory, Teddington
Blundell Rules Limited P.1418 Room Volume Calculator
Blundell Rules Limited P.1442 Friction Loss Calculator
Blundell Rules Ltd. P.1452/53, Copyright Design T.I.(E). Ltd, T.I.(Export) Ltd, T.I.House, Five ways, Birmingham 16, England, Unit Conversion Rule
Blundell Rules Limited P.1553 Armstrong Floor Calculator
Blundell Rules Limited P.1614 Teeni Soil Density Slide Rule
Blundell Sissons Paint Slide Rule, P.1960.
Blundell Rules Ltd, P.2329 Lidderdale Area and Volume Calculator.
Blundell Rules Limited Fisher Valve Sizing Slide Rule P.2734.
Blundell Rules Limited P.2808 Ultrasonic Calculator
Blundell Harling Ltd, P.3183 Paper Calculating Slide Rule
Blundell Decimal Percentage Calculator, P3430 made for Phillips with a cursor in the shape of a Light Bulb.
Blundell Harling Ltd, P.3488 Farris Safety Relief Valve Sizing Slide Rule.
Blundell Harling Ltd, P.3783 Flather Halesowen Limited Sheffield Weight Calculator.
Blundell P4290, Flow Calculator for Everite A.C. Pressure Pipes Manufactured to BS 486/73 for TAC Construction Materials Ltd. PO Box 22, Trafford Park, Manchester.
Blundell P4311, Actual Overlap Slide Rule made for Quality Control, Open Top Group, Metal Box Co. Ltd. London.
Blundell Harling Ltd, P.4743, Fisher Control Valve Sizing Rule Mark V111./strong>
Blundell Harling Ltd, P.4883, Fujinon T.V.Lens Calculator.
The Nelson-Jones Circuit DEsigners Slide Rule, designed and marketed by Key Electronics, Bournemouth, England.
WHSmith Student Slide Rule
WHSmith Simplified Rietz Slide Rule (Blundell S143-10)
WHSmith Simplified Rietz Slide Rule (Blundell S143-20)
WHSmith Log-log trig Slide Rule (Blundell Academy 802)
Wh Smith Master Duplex
Wiljon Technik-Art Simplified Rietz Slide Rule
Blundell Radiac N0 1 Ref. No. 6665-110060 Nuclear Bomb Effects Calculator. The top two pink discs are for calculating fallout on Land they can be turned over to show blue discs for calculating fallout at sea
Blundell Radiac N0 2 Ref. No. 6665-99-949-1446.
Blundell Gerry Decibel Calculator M615
Blundell Percentage Calculator M958
Blundell Reproduction Calculator M1158
Blundell Harling Metriverter M1769
Blundell Discount and Profit Calculator M2882
Flow Calculator for Everite Asbestos Cement Pressure Pipes, Made to BS.486/1956 for Turners Asbestos Cement Co.Ltd. a Turnall & Newell Company, Trafford Park, Manchester 17, made by Maxwell Jackson Ltd, Manchester. I have left this with my Blundell Rules because of the similarity of its construction with the Rule above and its Part Number P2388 which is suspiciously Blundell like.
