Giant Queen's Diamond Jubilee jigsaw at Sandringham

The jigsaw will be on display at Sandringham until 3 November

A 40,000-piece jigsaw of the Queen's Diamond Jubilee celebrations has been unveiled at Sandringham House, a month after it accidentally collapsed.

Dave Evans, from Weymouth, Dorset, spent 35 days hand-cutting the 20ft by 8ft (6m by 2.5m) jigsaw, featuring 33 images of last year's Jubilee.

It is believed the completed puzzle could be a record breaker - as the world's biggest hand-cut wooden jigsaw.

The puzzle collapsing during its first build received 110,000 hits on YouTube.

The mishap was recorded while the final parts of its construction were being streamed over the internet at Mr Evans' workshop.

Once built back into 132 large chunks, it was transported to the Queen's estate in Norfolk and finished off in the dining room.

It will be displayed until 3 November and then auctioned for Help for Heroes.

"There's a part of me in this jigsaw. But when I die, this jigsaw will last forever," said Mr Evans.

A spokeswoman for Sandringham House said: "We were very pleased to be offered the loan of this unique jigsaw puzzle to add to this year's Ballroom exhibition, particularly as it shares our theme of celebrating Her Majesty's Diamond Jubilee last year."

Mr Evans said he hoped his creation would fetch more than £15,000 at auction - making him a world record holder for building the most expensive wooden jigsaw.

The artisan puzzle-maker said he was also considering another record attempt later in the year, for the fastest jigsaw ever cut by hand.