Hi ! Here is the most beautiful Silver coin issued by Australia on 31 October 2008, Celebrating Darwin’s 200th birthday, this important commemorative coin also coincides with the 150th anniversary of Darwin’s book, On the Origin of Species by Means of Natural Selection, which was published in 1859. The coin’s reverse depicts two portraits of Darwin. The coloured image shows him at 30, shortly after returning to England from a five-year round the world voyage aboard HMS Beagle. The observations he made and the specimens he collected, particularly while in the Galapagos Islands, led to his incredible insights. The second image is of Darwin in his 60s, around the time of his other major work, The Descent of Man. Also portrayed in the reverse is Darwin’s signature with the inscription CHARLES DARWIN 200TH BIRTHDAY 12 FEBRUARY 2009 . I hope this will be the collectible item for coin collector as well as those looking for special items , stamps and coins on Darwin.