A revolver (L), and Adolf Hitler's portrait (R) were among the items that were found. WDR LokalzeitAfter the German floods, a man found hidden Nazi artifacts in his aunt's home.It contained a gun, brass knuckles and Hitler's portrait behind a plastered wall.Experts have discovered 12 boxes of artifacts in the home's excavations.For more stories, visit Insider's homepage.Unbeknownst to Germans, a man was trying to clean up a home that had been damaged by floodwaters. He discovered a treasure trove of Third Reich artifacts behind a wall.Sebastian Yurtseven was renovating the Hagen house of his aunt in Hagen, Germany, after severe flooding in July that left 190 dead.As he was removing a piece of plasterboard that was rotten, he noticed a wall cavity about a foot wide behind it. It contained a 1945-dated newspaper.Continue reading: Photos of the devastating flooding and extreme rain in Germany show how it has been portrayedHe realized that there were more things in the hole than just the newspaper. There was a revolver and gas masks.Yurtseven said that Yurtseven had goosebumps. "I didn’t expect it would become such a big discovery."Yurtseven also discovered Nazi documents from National Socialist People's Welfare, which was a social welfare agency that provided healthcare and childcare during Hitler's Third Reich.Experts believe that the artifacts were quickly placed in the cavity during the invasion of Hagen by American forces in April 1945.Ralf Blank, Archive Manager, told the Frankfurter Allgemeine that it must have been very chaotic. Although such hasty disposals are not uncommon, it is rare to find a find like this.During World War II, the Nazis used systematic robbery to subvention the NSV.Blank said that they hoped to find files concerning the distribution of "Jewish furniture". According to the Frankfurter Allgemeine, a recently published study shows that assets from Jewish foundations were donated by the Frankfurter Rechtsabteilung.Continue the storySince then, 12 boxes of items have been uncovered by archaeologists and archivers who excavated the home. They include piles of Nazi insignia and gas masks.Yurtseven and Yurtseven claimed that they didn't know about the Nazi legacy behind their family home, which was bought by them in the 1960s.Insider has the original article.