The obverse is Queen Elizabeth II of Australia. This coin features stylized solders and the Eureka Stockade on the reverse. I got this coin in a swap. The trader pressed the coin himself. The coin commemorates a gold miners' uprising to protest high taxes and their treatment by the authorities. According to the documentation that came with the coin from the Royal Australian Mint, some say the uprising "accelerated the rise of democracy; but on this question the debate is never-ending".