1955. No Edition Remarks. 272 pages. No dust jacket. Green cloth covered boards. Black and white diagrams throughout. Pages are heavily tanned and foxed throughout. Some cracking to hinges and gutters with exposed netting. Some water damage. Binding remains firm. Boards have heavy shelf wear with bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Book has slight backwards lean.