The logo of the 100^th anniversary of the funding of the Chinese Communist Party corresponds also to the design of the identical miniature sheets issued by Centrafrica, Chad, Djibouti, Guinea Bissau, Niger and Sao Tome, in which the stamps are the round centers of the zeros in figure “100”. These items are simple commemorative products created centrally (Stamperija), not related to the basic issue [D20210701] and therefore not considered as joint. Information provided by Wayne Chen (USA).