Two pairs of dining chairs created by famous Scottish designer Charles Rennie Mackintosh are to be sold at auction.

Bidding for the horsehair fabric-upholstered pieces, which were crafted for a friend in 1910, will begin at £15,000 for each pair, said auctioneers Lyon and Turnbull.

The stained oak chairs were originally part of a set of six and were made for William Douglas, a decorator Mackintosh had employed for various projects including Hous’hill in Nitshill, in Glasgow’s south side.

The pieces were created by Mackintosh the year after he completed the second phase of the Glasgow School of Art.

Lyon and Turnbull director John Mackie said: “The sale represents a rare opportunity to purchase scarce original furniture designed by Charles Rennie Mackintosh.

“Only six of these chairs were made and their design demonstrates Mackintosh’s skill in transforming traditional vernacular forms into something new.”

The chairs will form part of the auctioneer’s Design Since 1860 sale next Thursday, which is taking place online.

Last year, a bedside cabinet by Mackintosh was sold by the auction house for £250,000 after “an intense international bidding battle”.