 A master recording was cut, then electroplated to produce a stamper from which pressings in vinyl (or, in the case of transcription discs pressed before about 1935, shellac) were molded in a record press.The Armed Forces Radio Service (AFRS) had its origins in the U.S. War Department's quest to improve troop morale.This quest began with short-wave broadcasts of educational and information programs to troops in 1940.