1689 William & Mary Gold Full Guinea

We're the Britannia Coin Company: offering exceptional service and unbeatable value to all who collect and invest in coins. Part of Gold-Traders (UK) Ltd, we've earned a world-class reputation over more than a decade of buying and selling currency from new issues to ancient coins.

Buy with Confidence

All Gold, Silver, Platinum and Palladium coins we sell are 100% guaranteed authentic and, where relevant, are individually certified. We're members of the British Numismatic Trade Association (BNTA) and pride ourselves on our honesty, integrity and expertise: just read some of our reviews.

When you buy online with the Britannia Coin Company, you're guaranteed a fully protected service. Our payment process is fully encrypted, preventing unauthorised access to your personal and financial details. Check your browser bar for the trusted padlock symbol: it’s a mark of security.

Our prices include fully insured delivery. Your purchase is covered from the moment you buy until it’s in your hands. Orders are packed with care, tracked every step of the way, and require signature on receipt to ensure a safe delivery experience. Please note we only deliver within the UK.

Visit our Showroom

We're based in Royal Wootton Bassett, a historic market town in beautiful Wiltshire. If the name rings a bell it’s probably because you remember how the community honoured those soldiers who lost their lives in Iraq and Afghanistan. The 'Royal' in the name was granted in 2011 to recognise this.

Our new showroom – opened in 2020 – is located in the heart of Royal Wootton Bassett in a grand, old bank building. Inside you can view our stock, as well as jewellery and collectibles from several local antique dealers. Look out for the Old Bank Antiques sign and come on in.

If you’re seeking to inspect a specific item you have seen online, give us a call ahead of your visit on 01793 205 007 so we can make sure it’s ready for you to view. If you’re collecting an order your payment should have cleared before you arrive and we may ask to see identification.

Get in Touch

Got questions? Our experts are ready to answer them. If you need more information before you make your purchase then please get in touch.

Call our showroom on 01793 205 007.

Drop us a line on coins@britanniacoincompany.com.

Visit us at 143 High Street, Royal Wootton Bassett, Wiltshire SN4 7AB.