This is for a Navy Training Course book titled Sonarman 1c & Chief, and was published by the US Government Printing Office and dated 1945.  This is complete with the foldout diagrams (one is shown in the pictures and there is at least one more in the book).  233 pages.  Softcover. Perfect bound.  Spine is uncracked.  Pages have light toning from age.  I didn't notice any writing in the book.  Covers show some wear, including a little litho chipping, rubbing, and there is a piece of clear tape on the front cover near the bottom edge (it's not repairing a tear or anything - it's just tape on it for some reason).  There is also a small puncture on the front cover below "1c"  Back cover has a crease to the upper inside corner.