Watch List notes:

BELGIAN CONGO.

Banque Centrale du Congo Belge et du Ruanda-Urundi. 10 Francs 31.08.52. Specimen. Without serial number. Red overprint ''SPECIMEN'' twice on face and back. Punch hole in the design and one in margin. 28 written with red ink on face. Pick 22 unlisted as specimen.
AU traces of glue in margin