NETHERLANDS, Kingdom. Wilhelmina. 1890-1948. Proof AR 1/2 Gulden (21mm, 5.03 g, 6h). Utrecht mint; muntmeestertekens: seahorse and winged caduceus. Dr. C. Hoitsema, mintmaster. Dated 1910. KM 147; Y 41; Schulman 837. In NGC encapsulation graded Proof 65 WINGS APPROVED. Superb gem proof iridescently toned with hues of blue and amber.