Costa Rica Pick S173s1 Specimen 5 Colones 1.1.1901, Series A, Unsigned, San Jose - WBG 64 TOP Uncirculated Choice. ABNCO Archival Violet Date Stamp “MAY 1901” in UL reverse corner. Very well-centered, fresh, crisp, antique banknote. Pick Specimen price $3,000.00. Scarce variety!