Researchers excavating the remains of one of the most notorious Nazi death camps have uncovered a pendant that appears identical to one belonging to Anne Frank, Israel’s Yad Vashem Holocaust memorial says.

Yad Vashem said it had ascertained that the pendant belonged to Karoline Cohn — a Jewish girl who perished at Sobibor and may have been connected to the famous diarist.

Both were born in Frankfurt in 1929, and historians have found no other pendants like theirs.

The triangular piece found has the words “Mazal Tov” written in Hebrew on one side along with Cohn’s date of birth.

The other side has the Hebrew letter “heh”, an initial for God, as well as three Stars of David.

A photo of the pendant found at Sobibor camp in Poland. Photo: Yoram Haimi, Israel Antiquities Authority

Researchers are now trying to reach out to any remaining relatives of the two to confirm whether they were related.

Since 2007, the Israel Antiquities Authority, together with Yad Vashem, has been conducting excavations at the former camp in Poland in a novel approach to Holocaust research.

The camp was destroyed after an October 1943 uprising, with the Nazis levelling it and planting over it to cover up their crimes.

Yet, archaeologists have managed to uncover the gas chamber foundations and the original train platform.

More than 250,000 Jews were killed in Sobibor, in eastern Poland, one of the most extreme examples of the Nazi “Final Solution” to eradicate European Jewry.

Frank died at the Bergen-Belsen camp, in northern Germany, in 1945.

“These recent findings from the excavations at Sobibor constitute an important contribution to the documentation and commemoration of the Holocaust, and help us to better understand what happened at Sobibor, both in terms of the camp’s function and also from the point of view of the victims,” said Havi Dreifuss, of Yad Vashem’s International Institute for Holocaust Research.