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Instruction book for a VS 7 No.2 Folding cartridge Hawkeye camera, c 1928
Stone's Pressure Ventilation and Heating System for Railway Carriages and Railcars - General Description and Maintenance
Stone's Single Battery Externally Regulated Train Lighting System - General Description and Maintenance
Instructions for Loading Machinery and Kindred Traffic e.g., Aeroplanes, Boilers, Cables, Castings, Pipes (Economiser & Gilled), Rollers (various) etc.