Each stamp explores abstractions of architectural and iconic details of the United Nations - the Secretariat building and General Assembly in New York, the Palais des Nations in Geneva and the United Nations Office in Vienna.
First day covers for the "2014 Definitives" stamps are available in the following versions:
- Single - a total of six envelopes, each with one of the values issued, appropriately cancelled
- Block - a total of six envelopes, each with a block of four with M.I. of the values issued, appropriately cancelled
- Combo - a total of three envelopes, each with the two values of each denomination, appropriately cancelled
- Triple - one jumbo size cover with all six stamps issued, appropriately cancelled New York, Geneva and Vienna