Watch List notes:

GERMANY, German Empire. Preußen (Kingdom). Wilhelm I. 1871-1888. AV 20 Mark (22mm, 12h). Hannover mint. Dated 1873 B. Bare head right / Crowned eagle facing with head left, wings spread; collared coat-of-arms on breast. Jaeger 243; KM 501; Friedberg 3814. In NGC encapsulation 2848192-002, graded MS 63+.