Concurrently with these developments, architectural and artistic innovations relating to tombs of private individuals can be dated to Sahure's reign. These including torus molding and cornices for false doors, first found in Persen's tomb. This feature would subsequently become common and here demonstrates the particularly high esteem in which Persen must have been held by the king. Another innovation is the depiction of small unusual offerings such as that of seven sacred oils on false doors, first found in Niankhsekhmet's tomb. The canonical list of offerings was also developed during or shortly before Sahure's time in the tombs of the royal family, and spread to those of non-royal high-officialsthe earliest of whom was Seshemnefer Iunder Sahure.