B1073.  Katana no Gimei by Inutsuka & Fukunaga.  1973. Hardbound with dust jacket and plastic jacket, 7 ½ x 10 ½”, 196 pages in Japanese.  This book is a study of false signatures on Japanese swords.  Forgeries have been a problem from a long time ago; at times there were well organized shops turning out blades with faked signatures.  With this book and some study you might be able to avoid buying a fake.  I have a digital copy of an English index to this book.  If you buy it remind me to send you the index.

Condition is excellent.  1 pound, 14 ounces.  $70.