The iPhrothiya yeSiliva - Silver Protea , post-nominal letters PS , was instituted by the President on 16 April 2003 and came into effect on 27 April 2003 , to replace the Southern Cross Medal ( SM ) and Pro Merito Medal ( PMM ) . The bilingual title of the decoration is in siSwati and English
Southern Cross Medal
Southern Cross Medal (1975)
IPhrothiya yeSiliva