Article on ICAO stamps of Guyana

[guyana1230]

Interesting article which illustrates the way some Guyana stamps had several surcharges and overprints applied to them in the 1980's;


applications.icao.int/postalhistory/guyana_1984_40th_anniversary_of_icao_1.htm

[mourningdoves]

This is interesting. And it got even more interesting after I finally looked up "ICAO" to find out who they are . I'm glad to get an insight into what all those overprints were all about. And the writing is good as well.