David Hockney is likely to be furious to hear his holiday snaps are to be sold at auction, according to one of his close colleagues.

A collection of photographs taken by the Bradford-born artist will go under the hammer on Monday and is expected to raise £8,000 or more.

But Ray Shilling, manager of Salts Mill, Saltaire, which houses the famous 1853 Gallery of Hockney's work, said: "I suspect he will be extremely upset.

"He was furious with the issue of faxes of his work stuck on a blind being sold as art. The whole issue of reproduction upset him."

Last year, faxes that Hockney sent to his sister Margaret ten years ago, which she made into a kitchen blind, were sold at auction for £11,000.

On Monday, a collection of 42 holiday snaps will be sold by David Duggleby Fine Art Auctioneers in Scarborough.

The lot includes an album of 24 colour shots and 14 digital photos which he took in Bridlington in 1997 and 1998.

Mr Shilling added: "We have a number of Hockney's photos of Bridlington in Salts Diner, and on the third floor we have some of his digital photos. Looking at the ones up for auction you can see elements of similarity.

"It could well be that they are copies and not originals. Saying that, there is no such thing as an original photo as Hockney will have the negatives and can print off as many copies as he likes."

One of the photos is a self portrait of the artist reflected in a window. "This is by far the most interesting one," added Mr Shilling.

Jane Duggleby, of David Duggleby Fine Art Auctioneers, said the photos were being sold by an anonymous seller from the Scarborough area.

"I'm sure people will view them as works of art," she said. "They were taken by a world-famous English artist, he took them and they belong to him as examples of his work - it's like buying Ryan Giggs's football boots.

"There has been a lot of interest from across the country and across the world so it will be interesting to see how much they go for."

In 1997 and 1998, Hockney, who was trained at Bradford College, spent a number of weeks in Bridlington.

The 62-year-old spent time with his friend and art dealer Cavan O'Brien, to whom he passed on his holiday album.

Since then the photos have found their way by an anonymous seller to the auction house.

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