Crates of Nazi German documents were rediscovered in the basement of the Argentina Supreme Court.

It was an unusual discovery when workers were cleaning up the basement of the building before moving to the newly created museum in front of the archives.

According to information collected by court officials, the documents were sent to Tokyo by the German Embassy in Tokyo and arrived in Argentina on June 20, 1941, with Japanese ships in 83 diplomatic bags inside.

They eventually opened five small bags randomly after the Supreme Court was confiscated by Argentina customs officials and found Nazi propaganda materials inside.

Workers rediscovered them last week, attracting them by the many wooden champagne crates they stumbled upon while moving archive materials from the Supreme Court’s basement.

The court said of the finding: "We identified materials aimed at consolidating and spreading Adolf Hitler's ideology in Argentina during the period of World War II."

The crates were quickly moved to the building’s security office, and court officials reminded the Buenos Aires Holocaust Museum of its existence and sought help creating a stock of all content.

Photos released by the court show experts screened black and white photos with obstacles on the cover and membership manuals.

Historians hope that the documents will provide clues to the Nazi financial network and its international connections.

In a statement, Argentina's Supreme Court revealed information that has been pieced together so far.

It said the documents arrived in Argentina from Tokyo from Tokyo in June 1941, when they were declared "personal influence" by the German embassy.

However, due to the size of the goods, custom-made officials in Argentina were suspicious and reminded the Argentine foreign minister of concern that it might contain materials that could endanger Argentina's then-neutral position.

Five of the pouches were randomly opened and found to contain postcards, photos and Nazi propaganda material.

The German embassy in Buenos Aires asked the pouches to be sent back to the Tokyo Embassy - first sent from there, but an Argentine judge ordered the seizure of all 83 pouches in September 1941.

The task of Argentina's Supreme Court was to decide what to do next, but it seemed that no decision was made before 1944 - when Argentina broke down with the axis power - explained how crates collected dust in the court basement for decades.

After the end of World War II, under Juan Perón, Argentina became a refuge for many senior Nazis, including Adolf Eichmann and Josef Mengele.

In 2000, President Fernando de la Roua formally apologized for his country's role in carrying Nazi war criminals.