A pair of silk knickers said to have been owned by the Queen have been put up for sale on eBay.
The undergarment, for which bids have reached more than £3,200, is embroidered with the letter E and a picture of a crown.
They are purportedly being sold by the estate of Baron Joseph "Sepy" de Bicske Dobronyi, described as an aristocrat, art collector, traveller and Playboy.
It is alleged the bloomer-style knickers, which have not been confirmed as authentic by any official sources, were left on a private aeroplane during the Queen's visit to Chile in 1968.
There, it is claimed, they were picked up by the pilot and given to his friend, Hungarian-born Dobronyi.
After the latter died in 2010, his family discovered the garment and are now auctioning it on eBay.
The knickers, listed as an "item that has been previously used", are advertised as being in good condition.
They have four small pearl-like button and a monogram of the Royal crown, along with two flowers on a stem with leaves, and are hemmed with crocheted lace.
The undergarment, which has a 26 inch waist and is 16 inches long, is advertised on the website as a "once in a lifetime opportunity to acquire and own a piece of collectable Royal memorabilia."
Last year, a pair of knickers owned by Queen Victoria fetch £9,375 at a British auction house.