Second edition. x, 132pp, 8pp catalogue, 24 diagrams. Red cloth-covered boards, black titles on front and spine, bottom text block edges untrimmed. 12mo. Lightly rubbed spine ends. Text block edges just starting to tan. Free endpapers starting to tan otherwise internally neat, clean, bright and tight. Dust jacket spine sun-faded, has light shelf wear, chipping to edges.
Preface by O W Richardson
