ELIZABETH II, Perth Mint, bimetal typeset, 1999-2001 (four proof coins), one hundred dollars, Centenary Sovereign (.2354oz gold, .161oz silver), twenty dollars, Millennium Gregorian Calendar (.27oz gold, .161oz silver), twenty dollars, Millennium View of Earth (.27oz gold, .161oz silver), twenty dollars, Centenary of Federation (.285oz gold, .356oz silver). In case of issue with certificate number 138, FDC.