75th anniversary of the UPU. UPU Monument, Bern, Switzerland
"Antugua and Barbuda Post Office" as part of the British "Royal Post Services"
<a rel="nofollow" class="external free" href="https://colnect.com/en/stamps/list/country/9-Antigua_and_Barbuda/year/1949">https://colnect.com/en/stamps/list/country/9-Antigua_and_Barbuda/year/1949</a>