2009 $1 Australian Antarctic Territory South Magnetic Pole 1oz Silver Coloured Proof CoinThe South Magnetic Pole is the Southern Hemispheres point on the Earths surface where the direction of the Earth's magnetic field is vertically upwards. Because of the field's constant drift, the location of South Magnetic Pole moves continuously. The coins reverse depicts Douglas Mawson and two Antarctic explorers against a blue coloured sky. The image, which incorporates The Perth Mints P mintmark, appears within the shape of the Antarctic continent