1936. First Edition. 538 pages. This is an ex-Library book. ...and Inventors, Volume II. Dust jacket over red cloth. Library copy, with expected inserts, stamps and inscriptions. Black and white illustrations throughout. Minor foxing and tanning to pages. More prominent to text block edges, pastedowns and free endpapers. Binding remains firm. Dust jacket adhered to pastedowns. Boards presumed clean due to dust jacket adhesion. Unclipped dust jacket with moderate rubbing, chipping and tearing to edges. Moderate tanning and scuffing overall.