Folio, 3 pages followed by 10 drawings. List of contents: Description and Action of Brake, Drawing No. 1: Brake applied to Engine; Drawing No. 2: Brake applied to Tender; Drawing No. 3: Brake applied to Carriage; Drawing No. 4: Brake applied to Guard's Van; Drawing No. 5: Carriage Cylinder; Drawing No. 6: Engine Cylinder; Drawing No. 7: Ball Valve; Drawing No. 8: Combination Ejector; Drawing No. 9: Van Valve and Drip Tap and Valve; Drawing No. 10: Universal Coupling; List of Companies using the Vacuum Brake and Instructions for Working the Brake. Pages a little browned. Gold Medal stamp on contents page. Half-leather, edges scuffed, gilt lettering still quite bright, covers slightly darker than they appear in the photograph.