High Quality Content by WIKIPEDIA articles! The 1975 New South Wales Rugby Football League premiership was the sixty-eighth season of Sydney`s professional rugby league football competition, Australia`s first. Twelve teams, including six of 1908`s foundation clubs and another six from across Sydney competed for the J. J. Giltinan Shield during the season, which culminated in a grand final match for the WD & HO Wills Cup between the Eastern Suburbs and St. George clubs. NSWRFL teams also competed for the 1975 Amco Cup.