Goggles said to have been worn by aviation pioneer Amelia Earhart when she crashed early in her career have emerged for sale 90 years later.
Eighteen unseen photographs of Earhart as she prepared for her 1937 round the world attempt, during which she disappeared, are also up for auction.
The famous aviatrix is forever linked with Derry after she became the first woman to fly solo across the Atlantic - touching down in a field in Ballyarnett on the outskirts of the city in May 1932.
This famous flight from Newfoundland made her a household name. She was given a tickertape parade in New York and President Herbert Hoover presented her with the Special Gold Medal from the National Geographic Society.
Earhart is believed to have been wearing the broken Luxor aviator goggles when her plane came down during a lesson with her instructor, Neta Snook, in 1921.
The photos were discovered by 66-year-old Diane Brown who had been given them by her pilot mother 40 years ago but had forgotten they existed.
They include shots of the Lockheed Electra 10E used for Earhart’s doomed circumnavigation attempt. There are also personal images of her packing for the fatal flight and getting her hair cut at a barber’s shop.
Brown, who had initially thrown the pictures out with the rubbish, said: “I thought at the time it was just old papers that weren’t needed any more. But something said not to throw it out.
“I don’t know why, but something just kept telling me: ‘Get that back out of that bag.’ Amelia Earhart inspired my mother to fly.”
Marcus Wardell, from the Clars auction gallery in California, which is selling the items, said: “The broken goggles and unpublished pictures really stand out as collector’s items.
“The goggles were said to have been worn when Amelia crashed in 1921 at Goodyear Field in California. One eyepiece is broken and they were then owned by her instructor, Neta Snook, who gave them to our vendor.
“We have 18 unpublished photographs of Amelia just prior to her round the world attempt that ended with her disappearance. These items have caused a great deal of excitement because Amelia Earhart is still very well known.”
The goggles are expected to fetch more than £20,000 and the photographs hundreds of pounds each when they are sold on September 11.