An obvious example of the latter purpose can be seen in the Imperial order 'Heiden-ji Bunsho' (Heiden-ji Temple document) on May 20, 749 in Totomi Province, which was fully covered by Naiin 'Tenno Gyoji' including even where there were no words.
後者の端的な例としては、遠江国「平田寺文書」天平感宝元年（749年）閏5月20日勅願文があり、文書一面に文字のない箇所にも内印「天皇御璽」が捺されている。