STAFF at a Midland charity shop are celebrating after a mystery donor left a book at the store entrance which has sold for £1,700.

The first edition of Jeypore Enamels, which explores techniques for making Indian jewellery, was left at Oxfam in Moseley.

The literary treasure, published in 1886, was also signed by the authors Samuel Swinton Jacob and Thomas Holbein Hendley.

It sold at auction for over twice its lower-end valuation of £800.

Shop manager John Greenwood said: “We are so excited by this fantastic result.

“This is the most expensive book that we have sold since the shop opened 18 months ago.

“We had a really good feeling about this donation right from the beginning – but we have no idea who donated it. It was found in a cardboard box with half a dozen other 100-year-old – but less valuable – tomes.