The SWL QSL Card Museum Singapore Pacific / Oceania Radio Singapore - 1975(2), 1979, 1981, 1983 QSL Contributed by Istvan Kiss (Hungary) Radio Singapore - 1975 QSL Contributed by Istvan Kiss (Hungary) Radio Singapore - 1979    QSL Contributed by Bill McDavitt (USA) Radio Singapore - 1981 QSL Contributed by Erich Bergmann (Germany) Radio Singapore - 1983  QSL Contributed by Istvan Hegedus (Hungary)