Watch List notes:

ITALY. Papal States. Stephen VI (V), 885-891. Denaro (Silver, 21 mm, 1.21 g, 6 h), with the name of Charles III, "the Fat", 885-888, Rome. SCS PETRVS around monogram of STEPHAN. Rev. + CAROLVS (IMP) around monogram of ROMA. Berman 42 and pl. 2 (this coin illustrated). CNI XV p. 77, 1. MEC I 1054-1055. Muntoni 3. Beautifully toned with sharply struck centres. Some minor flatness and with a very skillfully repaired edge bend, otherwise, extremely fine.
From the Dr. Pelc Dens Sapiential Collection and from the collections of of K. Bronny, Münzen und Medaillen DE 26, 27 May 2008, 5 (€2100) and R. Capelli, Bank Leu 36, 7 May 1985, 567.