A gold pin given to a pilot who escaped a prisoner of war camp has sold at auction for more than five times its estimate.
The Dutch fighter pilot, Bram Van der Stok's, exploits were depicted in the film The Great Escape.
His gold caterpillar pin sold for just over £3,226 when it was estimated to sell for between £500-600.
The Irvin Golden Caterpillar measures 2cm long and has amethyst eyes.
The pin was awarded to Van Der Stok after he used a parachute to bail out of a faulty aircraft.
The Caterpillar Club was founded by Leslie Irvin of the Irvin Airchute Company of Canada in 1922.
Other noteable members include Charles Lindbergh and retired astronaut John Glenn.
Lockdales, who held the auction, said the pin is "an important historical artefact", and that the engraving on the back proved its authenticity.
"These pins are impossible to fake. When we first saw it we could hardly believe it, and it's been exciting to have the opportunity to sell it,".