Slide Rule Pendant | Maths and Science Gift | Sterling Silver

Our unique Slide Rule pendants are upcycled from pieces of original slide rules and then set in sterling silver. Slide rules are historic technological instruments – a perfect gift for mathematicians, engineers, scientists and university graduates.

Made from recycled vintage slide rule parts using British Thornton No. P241, the lettering is crisp and detailed.

We also have Scientific jewellery including computer circuit board pendants and cufflinks, and Vintage watch movement cufflinks. 

Size: 11mm x 11mm
Material: Upcycled Slide Rule, Sterling Silver
Colour: Aged White
Shape: Square

A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analogue computers.

To use a slide rule to multiply 2 numbers together, move the decimal points for each number you are multiplying so they fall between the values of 1 and 10. Next, find the smaller number on the D scale and slide the C scale so the "1" on the far left lines up with the smaller number.

Slide rules are now mainly found in museums and collections, as their practical use has been replaced by modern electronic calculators and computer software.

• An eco jewellery box
• Sterling silver polishing cloth
• Care information
• Plastic-free packaging
• Certificate of authenticity/information card

Please note: Every pendant purchase also comes with a free 18" sterling silver chain. If you would like to upgrade to a different style of chain, you will receive 10% off when purchased with a pendant. Our chain collection is here. This upgrade will be sent instead of the complimentary chain.

Read our blog, How to Choose the Perfect Chain for Your Pendant, for advice.

In order to protect your Hepburn & Hughes jewellery and ensure that it always looks as good as new, we advise you to follow these steps.

• Use the cleaning cloth provided to clean and polish your silver. This lint-free cloth is chemically treated to improve the silver's lustre and shine and can be used for light, regular cleanings to remove tarnishing. 
• Avoid contact with perfume, skin creams, hairspray and chlorine.

Gift wrapping for all jewellery items is available for an additional charge of £4.99. This includes a Hepburn & Hughes gift bag and a greetings card with a handwritten message of your choice.

Select 'Gift wrap this item' and complete with your message.

UK orders

All orders are dispatched within 1-2 business days.

Royal Mail Tracked48: £2.99 for orders under £60, free for orders over £60.

Upgrade to 24-48hr Express delivery (order by 11 am): £6.99*

Next Day Guaranteed delivery for Saturdays (order by 11am Friday): £12

International Orders

All orders are sent fully tracked within 1-2 business days.

Delivery schedules are based on Royal Mail guidance and are not guaranteed.

Please note: We do not collect local taxes and import duty on overseas orders – customs charges may be charged to the recipient.

*For more information please visit our shipping policy.

Returns

Returns are accepted for 30 days from purchase date. Please visit our refund page for more information.