Watch List notes:

Münster, Sede Vacante, 1801, half-konventionstaler (two-thirds taler) Clausthal, half-length figure of St. Peter holding sword, rev., half-length figute of Charlemagne holding sword, value below, 13.99g (Zepernick 334), minor fault above St. Peter, virtually mint state and rare [300 examples struck], in NGC holder graded MS65

Estimate: 300-400 GBP