A ‘spine-tingling’ sight used to guide the Second World War bouncing bomb is set to go under the hammer.
It will be the latest lot in a series of bizarre items auctioned off at J P Humbert Auctionners in Towcester after Jack the Ripper objects fetched £17,000 and Charles Bronson artwork sold for more than £30,000.
The Dann sight, valued between £20,000 and £25,000, was used during the British bombing raid on the Mohne dam in Germany and is one of five Dambusters items being auctioned off.
It was the bouncing bomb, guided by the sight in 1943, which breached the Mohne dam and flooded the western Ruhr region.
Auctioneer Jonathan Humbert said: “Of all the exciting items that have come under my hammer over the years, these have to rank as some of the most spine-tingling and historical.
“They were an integral part of modern British history and synonymous with heroism of the highest order.
“We are very proud to offer these items for sale and, given their excellent provenance, we are hopeful for a great result.”
The sight was designed by wing commander C L Dann and was used by bomb aimer pilot officer John Fort on board the AJ-J - the fifth aircraft to attack the dam which was piloted by flight lieutenant David Maltby
It was passed to Maltby’s father, Ettrick, and placed in the museum of his prep school, Hydneye House in East Sussex.
When the school was sold in the mid-1950s, it was passed on to the new headteacher and eventually to the current owner - a former pupil.
The auctioneers is also offering a map light and parallelogram used by sergeant Vivian Nicholson - Matlby’s navigator on the same aircraft - as well as four of the marbles used to design the bouncing bom and a leather collar box which belonged to the commanding officer for the mission.
The International Militaria Auction takes place at the auctioneers in Silverstone Business Park on January 20.