Australian Coin

Found this Australian coin inside one of the old boxes in the office while I was arranging/stacking them. The coin was dirty/rusty, so I cleaned it. I can't removed all the dirt, though. I've been trying for days already. =s Anywayz, I tried taking a close-up pic of the coin, but it blurs, so.. Sigh. My phone's getting old already, it's not working properly anymore; phone's camera included.