Watch List notes:

DENMARK. Christian IV. 1588-1648. AV Half Dukat (18mm, 1.72 g, 12h). Copenhagen mint. Dated 1644. Christian standing right, holding scepter and orb / Legend and date in four lines. Ophthalmologia VII.15v (this coin illustrated); Hede 35; KM 138; Friedberg 40. Toned, slightly wavy flan. Good VF. Rare.

From the Dr. Jay M. Galst Collection. Ex Sternberg XXXIII (18 September 1997), lot 507.