Dozens of boxes were sent by the German embassy in Tokyo to Argentina in June 1941 aboard a Japanese steamship, according to the history that the court was able to piece together, it said in a statement.<br><br> The large shipment drew the attention of authorities, who feared its contents could affect Argentina's neutrality in the war. <br><br> Despite claims from German diplomatic representatives that the wooden champagne boxes held personal items, Argentine customs authorities searched five at random. <br><br> They found postcards, photographs, and propaganda material from the Nazi regime, as well as thousands of notebooks belonging to the Nazi party. A federal judge confiscated the materials and referred the matter to the Supreme Court in Buenos Aires. <br><br> Eighty-four years later, court staffers came across the forgotten hoard as they searched for artifacts for a Supreme Court museum. <br><br> “Upon opening one of the boxes, we identified material intended to consolidate and propagate Adolf Hitler's ideology in Argentina during the Second World War,” the court said. <br><br> The court has now transferred the boxes to a room equipped with extra security measures and invited the Holocaust Museum in Buenos Aires to participate in their preservation and inventory.