1970. Facsimile Edition. 100 pages. This is an ex-Library book. Illustrated dust jacket over green cloth boards. Gilt lettering. Contains rear folded diagrams. Ex-Library copy, with expected inserts, stamps and inscriptions. Clean pages and diagrams. with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Pencil markings to back free endpaper. Ink stamp inscription to top edges textblock. Moderate tape marks to pastedowns. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is darkened. Visible wear marks to boards. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Visible wear marks to spine and panels. Jacket is laminated.