The caskets that the ancient Egyptians are most famous for are the sarcophaguses, which changed more than once over the centuries. The Old Kingdom, Middle Kingdom and New Kingdom all made changes to the appearance and tradition of the sarcophagus.
The Old Kingdom caskets or sarcophaguses were square and decorated with hieroglyphs and the information about the person inside it. The Middle Kingdom is where the sarcophagus took on its more familiar body-like shape, with the face and the artwork that featured the gods or other various scenes of the time. The New Kingdom saw the introduction of these burial pieces being pre-made instead of as needed for those of rich and noble birth. The information for the person could just be filled into the preset blanks on the sarcophagus.