Watch List notes:

German States. Schwarzburg-Rudolstadt. Ludwig Gunther II (1767-1790). Taler, 1780 ICK. Saalfeld, Johann Christian Knaust, mintmaster. On the Marriage of the Crown Prince. Draped and cuirassed bust right, rev. Seven-line legend, value and mint official's initials below. Dav.2770, KM 128. NGC AU 58.