Coin of half a Rijkdaalder of the first centenary on the surrender of the Augsburg confession of faith on the Reichstag. Reverse: bust of a man inside a circle interrupted by four coats of arms; Augsburg; Elector of Saxony Johan Georg I; Elector of Saxony Johan the Steadfast; Hans Jakob; Wroclaw; 1630; silver (metal); striking (metalworking); d 3.8 cm x w 14.37 gr