A.k.a. Peter J. Helffrich
Cutting mastering engineer. (1930-1999) Helffrich was the owner and operator of Helffrich Recording Labs in Allentown, Pennsylvania. The company offered a full range of record production: recording, mastering, lacquer cutting, pressing, etc. "Pete Helffrich" script appears in the runouts of Everest, VOX, Nonesuch, and many other releases. He was a member of the Independent Business Association and the Porsche Club of America.