Portrait of H.H. Prince
and the logo commemorating the 125th anniversary of Thailand's accession
to the Universal
Postal Union (UPU), of which Thailand became a member on 1 July 1885.
At that time, Prince
was a Thai ambassador to Europe and played an important role in helping
Thailand to become a member of the UPU. Between 1885 and 1890, the
also Director-General of Posts and Telegraphs. In the top left corner is the logo of the National Communications Day,
i.e. a stylized messenger pigeon.