Anyway on 20th Oct 2020, Egypt issued a £E4 stamp issued for CAPMAS, which is the Central Agency for Public Mobilization and Statistics. Basically this is the official government agency in charge of collecting, processing, analyzing etc of statistical data and conducting the census.
However this stamp was withdrawn from all post offices after two weeks! Why? Because they misspelled Egypt in both places. The y and the g were transposed making it Eygpt.
How many hands did this pass through and no one noticed. However this kind of error is the most difficult error to catch, ask a bookkeeper.



