Watch List notes:

Belgium - Leopold II (1865-1909), Prooflike 10 Francs 1867 (Gold, 3.17 gr, 18 mm) Dupriez 1054, KM A33. PCGS MS64

Extremely rare, last similar example was sold at Jean Elsen & ses Fils S.A., Auction 145, Lot 2004 (obverse scratched, proof strike in excellent condition) at 26.400 EUR