The SWL QSL Museum Thailand Asia HS-8PJ / HS-6PJ / HSK9 The Overseas Broadcasting Station Of Thailand - 1937, 1940, 1969 Experimental Radio Broadcasting Station 1937 QSL Courtesy of Kermit Geary (USA) HS-8PJ / HS-6PJ The Overseas Broadcasting Station Of Thailand - 1940   QSL Courtesy of the Les Miles Collection (Australia) The Overseas Broadcasting Station Of Thailand - 1969  QSL Contributed by Jorma Mantyla (Finland)