Document Part Number: 
                T.O. No. 11F39-2-1-111
            
        
            Number of pages: 161Part Number: T.O. No. 11F39-2-1-111Revision Date: 1-May-1958Description: Including Types: K-14A, K-14B, K-14C, K-18, K-18A, and Navy Mark 23
Manufactured by: AC Spark Plug Division of General Motors, and Sperry Gyroscope