slide rule calculator for concrete

Slide rule calculator for concrete

Very good condition. Postage extra £1 Read more

Slide Rule

This high quality Faber Castell 1/87 slide rule is designed for use by Mechanical and construction engineers. It is in very good condition and includes the box and instruction manual Read more

Slide rule

Brighton B Unique slide rule in original box. Read More

Slide Rule

Slide rule in case. Good condition. Little used. Possibly over 40 years old. Postage would need to be added - possibly £3.50 Read More

vintage slide rule

This 'Unique' slide rule has a wooden base with plastic scales and metal edges to the slide. Made in England. It is the 'commercial' version and on the back is a conversion chart for pennies and shillings into pounds and hundredweights and quarters into tons. Comes in protective card sleeve.there are two for sale sold seperately 10 pounds each Read More

Circular slide rule

Beautifully made circular slide rule/calculator. Marked 'The Colbar cubic calculator' Approx 11" diameter. Very nice condition. Read More

Vintage Slide Rule

Unique universal slide rule with cursor and box, used for engineering etc.

Vintage mathematical slide rule...

Vintage mathematical slide rule, 's Keuffel & Esser vintage mathematical slide rule, Decilon , in leather case. This is a hardly used example. Collectors item. £, Hassocks, .

A.W. Faber-Castell Slide Rule

Vintage A.W. Faber-Castell slide rule. Good condition. Read More

British Thornton Mark 2 Slide Rule

British Thornton Mark 2 Slide Rule, good condition Boxed with instructions Collect from Blyth Ad ID: Delivery Service Consumer Credit

ARISTO-Scholar NR VS Slide Rule

ARISTO-Scholar NR VS slide rule. Approx years old. Still in case been used but in good condition. Ad ID: Delivery Service Consumer Credit

  Nautical Slide Rule, Weems & Plath #105,

Weems & Plath Nautical Slide Rule Gives immediate solution to al speed-time-distance problems when any combinations of two factors - speed, time or distance - are known.      

Vintage "Blundell" Omega Reitz 401 Scientific Slide Rule

This vintage slide rule comes complete in its original box and is in good used condition. This will make a fine addition to any vintage slide rule collection. Read more

Vintage Faber-Castell Slide Rule Rietz no. 1/87

A lovely German-made piece, kept in original box and full working condition. A nice collectors item. Read More

Book: The Carpenter's Slide Rule, History & Use, John Rabone

The Carpenter's Slide Rule / History & Use, J Rabone & Sons, Reprint / Originally published by John Rabone, Reprinted by Ken Roberts, approx Book in great condition, Postage within UK £2.50 Read more

Book: The Carpenter's Slide Rule, History & Use, John Rabone

The Carpenter's Slide Rule / History & Use, J Rabone & Sons, Reprint / Originally published by John Rabone, Reprinted by Ken Roberts, approx Book in great condition, Postage within UK £2.50 Read more

Helix slide rule and compass and dividers

Helix 6 inch engineers slide rule and assorted compasses and dividers. With spare lead refills. Contact . Can post if required. Ad ID: Delivery Services Consumer Credit

Rule Rule-Mate GPH Fully Automated Bilge Pump 24V -

Rule-Mate Gph 24 Volt Fully Automated Bilge Pump. Once The Debris Is Removed, The Pump Will Revert To Its Normal Operation, Turning On When The Water Reaches 2-1/2

Graphical calculator (Casio fx- GII USB graphical calculator)

Casio fx- GII USB graphical calculator.Used during A-level maths perfect condition and much cheaper than to buy brand new.Make me offers Ad ID: Delivery Service Consumer Credit

​Vintage slide projector, slide magazines and screen for sale

​Vintage slide projector, slide magazines and screen for sale; Rank Organisation Aldis QI 24 semi automatic slide projector with manual all in original box. In working order. Two Aldis XT magazines with boxes and Dixons Atlantic free standing projection screen with box. Ad ID: Delivery Service Consumer Credit

vintage slide holders each holds 50 slides for slide projector

16 vintage slide holders for slide projector, all in very good condition, £4 each or £50 for the 16 Ad ID: Delivery Service Consumer Credit

35 mm Slide Projector with slide holders for apperox slides also remote control

35mm slide projector by Reflecter excelent lens and remote forwards reverses and focuses. Slide carriers for 50 slides enough for approx. slides in cases and boxes.

TWO CIRCULAR SLIDE CAROUSELS MADE BY GNOME FOR USE WITH ROTARY SLIDE PROJECTORS

TWO VINTAGE CIRCULAR SLIDE MAGAZINES HOLDING 122 SLIDES EACH. SUITABLE FOR SLIDES UP TO 2MM IN THICKNESS. CASH ON COLLECTION PLEASE FROM CORFE MULLEN. Ad ID:

Kodak Carousel Slide Trays, Slide Storage & Slide Binders. Will split

Will sell as a complete lot for £40 or can split as follows: 2 x Kodak Carousel Diamagazin Slide Trays. Mint condition and boxed £12 each Boots Slide Storage Box Holds 100 slides in numbered slots with unused index. £7 Stacking Dias Plastic Slide Box. 4 trays. Indexes unused, but some writing on the ends. £3 38 x Anti Newton unused slide binders. 24 x Collect Stotfold SG5 or please ask for postal quotes

  Speed / Time / Distance Calculator for

PORTLAND SPEED-TIME-DISTANCE CALCULATOR for Chartwork and Navigation,  ideal for RYA training DESCRIPTION The Portland Speed-Time-Distance calculator is a really simple-to-use tool for making your chartwork and navigation easier and more accurate. The most common way to use the calculator is to slide the scale until your speed is shown against one of the arrows, then look along the time scale and read off the distance you will travel in that time. The calculator works just as well being used to work out your speed given a distance travelled and time taken, or use it to find how long it will take to travel a particular distance at your chosen speed. And it does all this without you having to use paper and a pencil or do any sums in your head. A brilliant and handy little tool, the Portland Speed-Time-Distance calculator is made in the UK from tough plastic with clear markings and is completely waterproof. Full instructions are printed on the reverse. CONDITION Brand new and unused. Each Speed-Time-Distance calculator will be supplied in the original manufacturer's packaging. RECOMMENDATION I have been using the Portland Speed-Time-Distance calculator with my students on Royal Yachting Association (RYA) Day Skipper and Yachtmaster courses for many years and the Portland Calculator is used at RYA training centres around the world. My students have always found them easy to use and robust enough for use afloat as well as ashore. I will only sell products that I have personally tried and tested and can recommend. QUESTIONS I am very happy to take questions and you may want to view  my other items for sale.   Thank you for looking. Russ Russ Coxon RYA Yachtmaster Instructor and Examiner RYA Powerboat Trainer

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