They put a QR code on the coin that leads to the dutch mint's website. I'm a bit of a tech guy, so I'm considering getting it http://gizmodo.com/5813011/the-dutch-are-making-qr+coded-coins-seriously
We "talked" about that coin here: http://www.cointalk.com/t35562-12/#post1200319 You may want to view the videos at the mint's web site ... Christian