The book has encountered water. There are no damp stains, but the pages are noticeably warped at the edge, although they remain perfectly legible. It is an aesthetic fault, rather than a "structural" one. For the rest, the pages are clean and the binding solid. No publishing date, c1981, also no isbn, though Trove gives it as 0959232109. 99 p. : illustrated (some col.), plans. Please check with us for an accurate postage cost, the book is quite light.