Watch List notes:

SWITZERLAND: AR ½ franc, 1952-B, KM-23, brilliant white surfaces with some cameo effect, a wonderful example! PCGS graded Specimen 67, ex Mike Edwards Collection. A similar example in PCGS SP67 sold in Heritage Monthly Auction 271639, Lot 37167 for $420 in September 2016.

Estimate: 125-175 USD