Austria, Silver-Niobium 25 euro coins series with 2013 new design.

[SILVERCOINSSHOW]

Here is link to Silver-Niobium series 2003-2013

http://www.coin-database.com/series/austria-silver-niobium-25-euro-coins-25-euro.html

and video of 2010 Renewable Energy

[youtube]http://www.youtube.com/watch?v=_iNJYxgQNe0[/youtube]