Watch List notes:

Netherlands - 2½ Gulden 1.5.1922 Zilverbon Error (Mev. 12-1a, voorheen Mev. 12-4a / AV 10.2 / Pick 17) - Printed with signaturs and only Serie B, without No. and digits - paperclipmark, 3 (pin)holes - XF/UNC