Burundi: Set of 2 progressive proofs of 5000 Francs ND P. 26a(p). The first proof has a complete printed front and back side but is printed without date or signatures. The second proof has only the underprint on front back side. Both notes have extended borders at right (from the original sheet). These borders show slight creases but not the notes themselves. Impressive pair of a key note of Burundi banknote collecting. Condition: UNC.