B833.  Nihonto no Bai Kaigata.  1975.  Hardbound, 6 x 8 1/2″, 301 pages in Japanese.  Hope I have the title right.  This is a guide for purchasing Japanese swords.  Everything you need to know to buy a sword 40 years ago.  Rubbing at the bottom of the covers; otherwise all is well.  1 pound, 7 ounces.  $10.