Watch List notes:

COSTA RICA: AR 50 centimos, 1923, KM-159, Y-43, Countermarked on 1893 HEATON Costa Rica 25 centimos (KM-130), magnificent full luster, only 2 graded higher for the type by NGC (March 2017), NGC graded MS65 on choice Unc host, ex Richard Stuart Collection.

Estimate: 75-125 USD