The SWL QSL Card Museum Yugoslavia Europe Radio Beograd / Radio Yugoslavia - 1955, 1970(2), 1986, 1997, Pennants and Stickers   QSL From The Borje Nilsson Collection - (Sweden) Radio Beograd - 1970 QSL Contributed by Istvan Hegedus (Hungary) Radio Beograd - 1970 QSL Contributed by Istvan Kiss (Hungary) Radio Yugoslavia - 1986     QSL, Sticker, and Pennant Contributed by Istvan Hegedus (Hungary) Radio Yugoslavia - 1997 QSL Contributed by Masanori Tomioka (Japan)