Watch List notes:

Costa Rica, copper-nickel 1/4 centavo, no date (1865), rare, NGC AU 55. KM-108. Plain design with matte texture but no marks and very little wear except on the crude (nearly non-existent) rims, important ephemeral issue struck without date (only 20,000 minted, and in fact the only Costa Rica coin ever made without a date in the design, also the smallest-diameter coin made for mass circulation, and the lowest denomination), rarely found this nice. NGC #4700529-010.
(600 - 900 USD)