B629.   Nagasone Kotetsu Shinko by Ogasawara.  1973.  Hardbound with slipcase, 7 ¼ x 10 ¼”, 351 pages in Japanese.  Swords, tsuba, armor, and other pieces by one of the great masters of Nihonto.  Well done oshigata and crisp black & white photos, and examination of Kotetsu’s varying styles of signature, and much more are included.

The slipcase (not the one in my picture) is separated at the corners at the top & bottom of the spine; otherwise it does a fine job of protecting the book.  The book itself is in great condition.  3 pounds, 7 ounces.  Was $70; Now $25.