The SWL QSL Museum Costa Rica Central & South America Adventist World Radio - Cahuita - 1997(2), 1998, 1999(2)  QSL Contributed by Olli Laine (Finland) Adventist World Radio - Cahuita - 1997 QSL Contributed by Rudolf Takacs (Romania) Adventist World Radio - Cahuita - 1998 QSL Contributed by Rudolf Takacs (Romania) Adventist World Radio - Cahuita - 1999  QSL Contributed by Erich Bergmann (USA) Adventist World Radio - Cahuita - 1999  QSL Contributed by Erich Bergmann (USA)