Set of United Nations commemorative first day covers, issued between 1976 and 1978. The collection features covers marking the 25th anniversary of the UN Postal Administration, with each envelope addressed and officially postmarked. Notable themes include the International Civil Aviation Organization and various UN initiatives, with stamps and cancellations from both New York and Geneva offices.
The collection is preserved in plastic sleeves, and the covers show stamps in multiple denominations. Condition appears clean and unaddressed beyond the standard collector's name and military address. See photos for Measurements if taken.