Although this issue was apparently authorized by the Central African Republic postal administration, the vast majority of the issue was not sold in Central Africa, but only distributed by the Central African Republic's philatelic agency Impressor S.A. for distribution onto the philatelic market.
This issue is still being sold on the WORLDARTSTAMPS (Impressor) website over four decades later as of the year 2025.
Apparently the Central African Republic was using multiple stamp agencies in this year.
Limited edition souvenir sheet only sold by philatelic agents
Self portrait Modigliani, detail of painting in F.M. Sobrimbo Sao Paulo, Brazzil