This issue is specifically denounced as illegal by the Democratic Republic of the Congo (the former Zaire) in Circular 418 on November 10, 1997. The circular denounces all Impressor S.A. produced stamps made in 1997. The circular states " For 1997, only the issues entitled flore, minéraux (flora, minerals) and Jamborée, circulation of which was approved by ministerial decree, are recognized as valid."
However, several major catalogues continue to list this issue as legitimate, so for now this issue will remain listed in Colnect as an Agency Issue. This status is subject to change should other catalogues move to delist these denounced items.