2010 Kangaroo at Sunset $1 Silver Proof Coin. The contemporary design of the Kangaroo at Sunset coin has made it one of the most sought after collector pieces from the Royal Australian Mint. Reproduced on the fine silver $1 coin, the lone kangaroo bounding across the desert plains against a setting sun is a truly iconic Australian image. Mintage 5000. Certificate of Authenticity is included with this coin numbered 139. **Please note outer box has a small indent, noted in pictures.