Sweden, Gustav II Adolf SM 55 2 mark 1618 8.98 g. Stockholm. Type with crowned portrait. Partly weakly struck. RR. Ex Misab auction 3, lot 1089. Ex Sten Törngren, Spink auction May 2000, lot 553. SMB 65. The mark coinage of Gustav II Adolf with crowned portrait is a group of coins that are all ranging from scarce to extremely rare. 1