Watch List notes:

Netherlands, Wilhelmina (1890-1948), Proof 10-Cents, 1904, 'Kroningstype', second 'Coronation' head left, rev. value and date in wreath, edge milled, 6h (Berkman 678; Scho. 886; KM 136 Proof Unlisted), heavily stained, otherwise brilliant and toned, extremely fine to much as struck, extremely rare, in NGC holder, graded Proof Details ~ Environmental Damage (Cert. #6135214-005)