Sweden, Kristina SM 39a ¼ riksdaler 1644 7.28 g. Stockholm. Mint mark AG at top. Historically the ¼ riksdaler of 1644 with divided mint mark AG at top has been regarded as fairly common. However, modern research has show that this variety is very scarce. Currently we know of only three examples in addition to the herewith offered! Reverse lightly double struck. Beautiful patina. RRR. Ex Misab auction 10, lot 923. Ex Gunnar Ekström 1976, Ahlström auction 12, lot 80. Ex Horace Brand 1950. Ex Virgil Brand, Chicago 1926. Ex Israël Berghman 1921. SMB 68. 1+/01)(1+