Watch List notes:

Banque Nationale de Belgique, specimen replacement 50 francs, 16th May 1966, specimen no. 230, brown and multicoloured, King Baudouin and Queen Fabiola at right, arms low left(Pick 139sr), red specimen on obverse and reverse, in PCGS holder 65 PPQ Gem New, Specimen Replacement issue.

Estimate: £200 - £250