Watch List notes:

Spanish Netherlands 1/2 Patagon 1636 Luxembourg. Philip IV (1621-1665). Av: St. Andrew's cross with crown above divides date. Av. Legend: PHIL. IIII. D. G. HISP. ET. INDIAR. REX. Rv: Crowned arms in order collar. Rv. Legend: ARCHID AVST DVX BVRG LUVXEM. Zc. Silver. KM 16. Hugo Vanhoudt 646.LU (R3). EXTREMELY RARE