B547.  The Armour Book in Honcho-Gunkiko by Arai Hakuseki, translated by Otsuka, edited by H. Russell Robinson.  1964 1st edition.  Hardbound with dust jacket, 7 1/2 x 10″, 132 pages in English.  Japanese armor in great detail with many drawings and photos.

The jacket is a bit frayed; the book itself is in fine shape.  1 pound, 8 ounces.  $45.