The books once belonged "The Florence M Taylor Technical Library" and there are some pencil markings along the edge throughout the book. Some pages are damaged: pp 34 to 42 are creases and have staple marks at the edges as does pp 99/100 and pp 107/108. The last is also torn at the edge.pages 100 and 101are damaged towards the bottom inside edge with loss of letters The pages just described look as though they have been tipped back in and jut out of the covers. The jacket, now protected, is torn and has a white label on the tail of the spine It sounds worse than it is as the book is actually clean and in solid binding. No publishing date, foreword dated 1926.