Check the listing for details. Vintage Simplon Bilateral Log-Log Engineering Slide Rule Made in England. Condition: Used. Listed at 16.99 USD. Vintage "Simplon"Bilateral (Log-Log)Engineering Slide Rule Length: 12 1/2 inch • Made in England Product Description: I am selling this item for a family friend. It is in very good condition and from aworkshop clearout, showing signs oflight wear and marks due to age and use. Product Details: Manufacturer: Simplon Type: Slide Rule Size: 12 1/2" Country of Manufacture: United KingdomCondition: Very Good Terms and Conditions Payment: Payment will be accepted via payment methods offered by eBay. Delivery: Your order will be sent next working day and delivered within 72 hours. Worldwide delivery is also available via the eBay Global Shipping Programme. Returns: Unfortunately returns are not accepted for this item. Feedback: If you are unhappy with your purchase, please do not leave negative feedback. Please message via eBay and I will be happy to resolve any problems you may have. FEEL FREE TO CONTACT ME WITH ANY QUESTIONS YOU MAY HAVE REGARDING THIS ITEM PLEASE TAKE A LOOK AT MY OTHER ITEMS I HAVE FOR SALE