The University of Sydney, Australia, has an ancient Egyptian coffin with a history of 2500. For the past 150 years, the university has always thought it was an empty coffin. Recently, when the archaeologist opened the lid of the coffin, it was found that there were mummies in the coffin. However, the mummies were severely damaged, and only 10% of the remains were left. The mummies were determined to be an adult over 30 years old, but the sex was undetermined. Similar brain injection of the resin and the famous Tutankhamun mummy used material.