Studio Chopin-Pleyel
Настоящее имя: Studio Chopin-Pleyel
Philips' french recording studio in Paris.
ACP stamped in runouts of Société Phonographique Française Polydor S.A. and Société Phonographique Philips releases = Acétate Chopin-Pleyel and means that the mastering and the lacquer was cut at Studio Chopin-Pleyel.