Poland
Republic gold Proof "St. Adalbert's Martyrdom" 200 Zlotych 1997 PR70 Ultra Cameo NGC, Warsaw mint, KM-Y323. A perfect example of this artistic commemorative with eye-catching stippled texture in the outer ring on the eagle side. A highly valued type in the Standard Catalog of World Coins with price of $2,250.
Estimate: 900-1100 USD