7 rolls (Case 1) and 9 v. (Case 2) in 2 cases.
"Nihon shoki, or Nihongi, the first officially compiled annals of Japan, down to A.D. 697, compiled in 720, in the oldest and best manuscript copies of various parts made between c.860 and the 12th century and in 1346." (K. Asakawa. "Gifts of the Yale Association of Japan, 1945).
Yale Association of Japan Collection original call number: C4.