Germany Blue Planet Earth - G - Karlsruhe (Polymer) 2016 Bfr | eBay
Temperate zone, 5 Euro coin with polymer ring, brilliant uncirculated, Germany | 5 euro coins - climate zones of the earth | Current topics | Stamps Sieger
Deutsches Münzen Magazin | 5-Euro-Münze mit Polymerring | Numismatische Weltneuheit
This is how coins with polymer ring are made: a visit to the Karlsruhe Mint - CoinsWeekly