First edition, first impression. 138pp, illustrated with numerous line drawings in text. Brown publisher's cloth-covered boards, gilt-stamped lettering on the spine. 8vo. Cloth is a little pushed at spine ends , small pencil mark on front free endpapers else neat, clean, bright and tight throughout. In its original dust wrapper, a little shelf worn, very slightly rubbed on corners. Dust wrapper now protected in Mylar-style wrapper, fitted without the use of tape or adhesives.