Took over the former Polyphon Schallplatten Ges. mbH pressing plant machinery.
Lacquer cutting, metalwork and pressing at Phonodisc GesmbH can be identified by the following runout stamps / etchings:
Made in Austria (stamped): used to indicate Austrian pressings made from lacquers cut abroad (e.g. Sonopress Gütersloh, Phonodisc Hannover or Baarn) (pressing indicator; Mastered At*, Pressed By).
CM (stamped), or as combination CM-B, CM-E or also as MC-B, MC-E, seldom as CS-E (until 1977): Long, narrow typeset or small typeset (faint, so can also appear as CH) (cutting indicator; Lacquer Cut At, Pressed By). C indicates 'Stereo' ('channelled') and does not appear on Mono recordings.
CK, CKD or CG (stamped) - between 1976 and 1977, (cutting indicator; Lacquer Cut At, Pressed By).
24 (stamped): As in the case of 'Made in Austria' used on pressings made from lacquers cut abroad (pressing indicator; Mastered At*, Pressed By).
From mid-1977 also used as indicator for lacquer cutting at the pressing plant (only in combination with AS or LH: cutting indicator: Lacquer Cut At, Pressed By). In the latter role succeeded the CM/CK variants.
012 (etched) - since 1975 - generally used on Austrian pressings of Ariola Eurodisc GmbH releases (only in addition to Sonopress stampers), either on its own or in combination with 'Made in Austria' (between 1975 and 1977) (pressing indicator, lacquer/mother made by Sonopress; Pressed By).
*Metalwork (stampers) at Phonodisc GesmbH
7" pressings show a characteristic immersion around the center hole (not too dissimilar from Sonopress-pressings, but slightly steeper). The label area of 7"s and 12"s is always slighly elevated. This particular disc shape occurs from the 1960s until the end of 7" vinyl production, i.e. stayed constantly the same from Polyphon Schallplatten Ges. mbH to Viennola BTG.
Albert Svoboda (AS)
Helmut Leistner (LH)
In 1979 the plant was renamed to PRS Ges.mbh.