Banque Centrale du Congo, a group of specimens including 500 Francs, 2010 Commemorative Issue (3), 1000 Francs 2005 (2), 2013 (5), 5000 Francs 2005 (2), 1000 Francs 2006 (2), 20000 Francs, 2006 (2), all with red specimen overprint, uncirculated (16 notes)
TBB B322-326s, Pick 100-104s £80-£120