Archaeologists initially thought it was a military parade weapon, which would have corresponded to the other finds such as stirrups and snaffles, the report continued. These had apparently been hastily disposed of at the end of the Second World War. However, restoration work then revealed that it was a fragmentary Japanese short sword. One side of the handle had been severely damaged by heat. Based on its motifs and style, experts were able to date it back to the so-called Edo period between the 17th and 19th centuries.