World Banknotes

Banque Nationale de Belgique, watermarked papers for 5 Francs (3), 1922-38, 20 Francs (3), 1921-48, 100 Francs (3), 1921-27, 1000 Francs (3), 1922-27, glued into individual black card frames, ink annotations on paper and margins, as produced, rare (12 papers)
BNB B545-B553, Pick 93-98, 108, 111, 116 for types £150-£200

Paper of this design was also used for several later issues