Koninkrijk NL Beatrix (1980-2013) - 5 Euro 2016 'Het Wadden Vijfje' in orig. wooden box with imprint 'Eerste Slag Nederlands Werelderfgoed Waddenzee, Utrecht, 10 juni 2016' - issued during the first strike of this coin and given to the invited guests - mintage ca. 130 pieces - Proof, rare