Sykes V10B Vertical Gear Generator (including the Sykomatic auto-loading version: Detailed Operator's Instruction Manual. Includes manuals for the Kopp Variator unit, the Lockheed Hydroloc valves and a detailed Technical Sales and Specification catalogue giving a useful oversight of the machine's capabilities. Also included is a basic wiring diagram.

Sykes V10B/1 Vertical Gear Generator (including the Sykomatic auto-loading version: Detailed Operator's Instruction Manual. Includes manuals for the Kopp Variator unit, the Lockheed Hydroloc valves and a detailed Technical Sales and Specification catalogue giving a useful oversight of the machine's capabilities.

Sykes VR72B Vertical Rack Generator. Operator's Instruction Manual - includes a manual for the Kopp variable-speed drive unit.

SCHIESS 1866 -1955 Anniversary Booklet. An illustrated Story of a German Enterprise. Schiess Aktiengesellschaft. (English text) 24 pages.

Kopp Variators 100 Series (Allspeeds): Instruction, Maintenance and Spares as Sectional Drawings.

Kopp Variators 300 Series (Allspeeds): Instruction, Maintenance and Spares as Sectional Drawings. Stored FC2-D1

Kopp Variators B Series (Allspeeds): Instruction, Maintenance and Spares as Sectional Drawings.