B727.  Nihonto 1.  The Sano Museum.  1971.  Clothbound with slipcase, 8 1/2 x 12″, 195 pages in Japanese.  The Sano Museum puts out beautiful books and this one is no exception.  92 great blades from Koto and Shinto and 6 wonderful koshirae are shown in crisp black & white photography (and oshigata for the blades).  Every piece is important.

The book is clean and in excellent condition.  3 pounds, 1 ounce.  Was $100, now $75.