Nazi surgical tools formerly owned by an SS Major and possibly used in a concentration camp during the Holocaust are being put up for auction.

A wooden box of instruments belonging to Anton Burger, commandant of the Theresienstadt camp in what was then Czechoslovakia, is being sold off by the widow of a Jewish man whose parents were Holocaust survivors.

Known as the "paradise camp", Theresienstadt was used as a propaganda tool during the Second World War.

Burger was the man who hid the death and destruction during stage-managed visits by the Red Cross which were used to help conceal the sickening purpose behind it and other camps from the watching world.

Burger was ordered by SS leader Heinrich Himmler and Adolf Eichmann, the orchestrator of the mass movement of Jews to camps in Eastern Europe, to change the appearance of Theresienstadt to fool Red Cross members who had requested access to a Nazi concentration camp.

Many inmates were temporarily removed from the overcrowded camp and cosmetic changes made to fool the inspectors.

The fact that the wooden instrument case is marked "instrumente gemischte", German for "mixed instruments", has led to the theory that this may have been made as part of the deception, to suggest it was for musical instruments.

"Anton Burger was charged with changing the appearance of the camp, and a lot of the Jews there were musical so it is possible it was made to look like a musical instrument case," said Grace Cloke, from Villa Hall Auctions based in Bude, Cornwall, which is handling the case.

Disturbingly, given the contents of the box, there is no evidence that Sturmbannfuhrer Burger, who was in charge of the camp from July 1943 to February 1944, ever received medical training.

The mostly monogrammed equipment has been put up for sale by an anonymous seller.

Ms Cloke said information about the memorabilia was scarce, as the seller's husband rarely talked about his family when he was alive because he had become estranged from them.

"It was always in the house on the shelf. His father used to deal during the war in the black market so we don't know whether they were in the camp and were able to take it or whether it came through the black market somehow," she said. "It is something we are never going to know."

Just 1,900 were still alive when the ghetto was liberated by Soviet troops on May 7 1945.

Austrian-born Burger was sentenced to death after the war but fled and lived under an assumed name, eventually dying in Germany in 1991 at the age of 80. It was only three years after his death, in 1994, that anyone found out who the dead man really was.

The collection, which has a guide price of £2,000 to £4,000, is due to go on sale this Saturday, February 11.