viii, 174pp, several black and white diagrams. Card covers, blue and black titles on front, white titles on spine. 8vo. Covers reinforced with rigid plastic and lightly tanned around top and fore-edge. Spine worn and peeling, shelf number sticker at heel. Spine ends and corners lightly rubbed. Lender's rubber stamp on top and fore text block edges, top edge starting to fox. Lender's markings inside covers and on titles and copyright pages, scarring on half-title page. Occasional lender's stamps throughout volume else internally neat, clean, bright and tight. Preface by Bob Edney.
