SWEDEN. Gustav III. 1771–1792. AR 4 Mark – 1/3 Riksdaler (29mm, 9.67 g, 12h). Commemorating the Birth of Crown Prince Gustaf IV Adolf. Stockholm mint. Dated 1778. KM M50; SM 98; Largesse 17. In NGC encapsulation graded MS 64. Choice lustrous brilliant uncirculated with lustrous gray-blue patina.
Purchased from Scott Cordry, March 1983.