For several years the Ghana postal service had been issuing its own stamps printed locally but unfortunately the printers failed financially and the postal service consequently resumed allowing the notorious New York-based philatelic agency, IGPC, to issue stamps on its behalf and this issue was one of 13 sets with Ghana’s name printed on them to pour out of the New York agency after 9 July 2012 during that year.
There - mystery solved. I hope the Catalogue editor reads this.
🇮🇲 Regrettably the Isle Of Man Post Office intends to issue yet another 8 ‘Space’ stamps as part of its 2020 new issue programme and will commemorate the Apollo 13 lunar mission, the Space Shuttle, the Space Station and the Spacelab. Isle Of Man Post Office describes the issue as “phenomenal”. Ho hum.