Watch List notes:

Nationale Bank van Belgie, specimen 1,000 francs, ND (1961-75), serial number 0000 A 000, specimen no. 301, brown and pale blue, Mercator at left, globe low right(Pick 136s), red 'SPECIMEN' on obverse and reverse, in PCGS holder 64 Very Choice New, scarce.

Estimate: £300 - £400