Time to start a new megacollection? Of course! Here are the first two pages of the stamps issued in 1973 to commemorate the centenary of the founding of the International Meteorological Organization (IMO), now the WMO #Philately #Stamps #StampCollecting dicksstamps.online/collections/...
The International Meteorological Organization (IMO) was founded in 1873 as the first body dedicated to meteorological observations
