For sale is reprint of Hickok KS-15874 tube Tester made for Western Electric. Manual is 56 Pages long and includes 3 11x17 foldouts with schematic diagrams. Manual is dated October 1961. 

Manual consists of 6 sections: General, Description, Calibration, Operation, Circuit and Maintenance. Maintenance is largest section, Pages 24 to 56 with Troubleshooting Procedures, 11 page Detailed Part List. Seems like this manual cover KS-15874 family of testers, KS-15874-L2 is mentioned multiple times in description and diagrams. 

Real Paper Manual. Quality Printed and Comb Bound. Printed from available copy or scanned from original at 600dpi, restored in Photoshop, Laser printed on premium acid free paper, they will serve for years. Most manuals Include foldout of Circuit Diagram. Cover page printed on Cover Stock. Free First Class Mail shipping in USA. International buyers please contact me before bidding.