To mark the occasion of Her Majesty The Queen's Golden Jubilee, Thomas's Jewellers and the Craven Herald have combined to offer readers the chance to win a limited edition commemorative prize.

Worth £500, the prize is a very special rare set of three fully hallmarked pin trays. One of the pin trays is pictured.

Remember, you can't buy this prize in the shops. The extraordinary thing about this prize is that two sheets of solid silver have been stored, one for 49 years, since the Queen's coronation and the other for 25 years in anticipation that Her Majesty Queen Elizabeth II would achieve her 50 years on the British throne.

Once a third sheet with this year's special mark for the Golden Jubilee had been struck, the three sheets were then made into matching pin trays.

These three exquisitely simple pin trays are displayed in a purpose made presentation case. The trays have been made out of sheets of precious sterling silver. Each pin tray has the normal set - the sponsor's mark, the assay office mark where the metal has been tested, the Standard Mark, the date mark and then the special commemorative marks.

For the Coronation Mark the Queen's head is displayed with the coronation crown. The Silver Jubilee Mark is the crowned Queen's head with a string of pearls around her neck. The Golden Jubilee Mark is the Queen's head with a tiara.

To enter the competition, see the current edition of the Craven Herald or visit the Thomas's web site on www.thomas-skipton.co.uk.

Geoff & Judy Thomas opened their shop in Skipton, when the big fashion accessory in jewellery was the silver ingot. That year - The Queen's Silver Jubilee featured an additional commemorative stamp in the hallmark.

This year while Thomas's are celebrating their 25 years of trading, there is again an optional additional commemorative mark.

Once again the silver ingot is in fashion, both in one ounce and half ounce sizes.

As this jewellery played such an important part in the start of Thomas's there is a chance to add another ingot to your collection or have one for the first time at a special price for the Jubilee. 1oz Ingot £19.95, oz ingot £17.95