Watch List notes:

Costa Rica, 50 centimos, 1923 counterstamp (Type VIII) on a Costa Rico 25 centavos 1893-Heaton, NGC MS 63, c/s UNC standard. KM-159. 6.30 grams. Well-struck and detailed counterstamp and host, mostly gold toned with a silvery center where the 1923 counterstamp was applied. NGC #4703634-003.
(100 - 150 USD)