COSTA RICA. Costa Rica - Great Britain. Real, ND (1849-57). San Jose Mint. PCGS AU-50. Countermark: AU Details.
KM-90. Type VII countermark on an 1842 Great Britain 6 Pence. Mild surface wear relative to what is typically seen, with a smattering of champagne tone about the peripheries. VERY SCARCE so fine.
From the David Sterling Collection.

Estimate: $400.00- $600.00