Watch List notes:

Banque Nationale de Belgique, 100 francs (2), 11 September 1952, serial number 0830.N.399/400, grey and orange-brown, King Leopold I at left, also another example dated 1 September 1952, (Pick 129a), first two uncirculated consecutive pair, third note almost extremely fine. Interestingly there are plenty of Pick 129b and c on track and price but no Pick 129a (3).

Estimate: £70 - £90