This captivating postal history item is a First Day Cover from the United Nations, issued on February 10, 1969. Originating from the United Nations Post Office in New York, it features a distinctive cachet for UNITAR (United Nations Institute for Training and Research), making it a significant piece for collectors of UN philately and international organizations. The cover showcases the inaugural use of the United Nations Scott #191 stamp, which is clearly tied by the "UNITED NATIONS NEW YORK FEB 10 1969" circular date stamp. This stamp, with its "NATIONS UNIES 13" denomination, commemorates the United Nations Institute for Training and Research, reflecting the UN's commitment to education and global development.

The cover's front prominently displays the UNITAR logo and the full name of the institute in French: "INSTITUT DE FORMATION ET DE RECHERCHE DES NATIONS UNIES." A special "FIRST DAY OF ISSUE" handstamp, featuring an image of the United Nations building, further authenticates its FDC status. The lower left corner includes a small UN logo, and the bottom text confirms it as a "FIRST DAY OF ISSUE OFFICIAL GENEVA CACHET." The reverse side of the cover bears the imprint "EDITION DES NATIONS UNIES, GENÈVE," indicating its origin from the UN publications office in Geneva. This cover represents a unique intersection of postal history, international diplomacy, and philatelic collecting, highlighting the role of the United Nations in global affairs during the late 1960s.

Specifications:
Era/Subject: First Day Cover, United Nations, UNITAR
Date: February 10, 1969
Origin: United Nations, New York
Destination: Not Addressed (FDC)
Stamp(s) Used: United Nations Scott #191 (NATIONS UNIES 13)
Postmarks: "UNITED NATIONS NEW YORK FEB 10 1969" circular date stamp
Markings: "FIRST DAY OF ISSUE" handstamp with UN building illustration; UNITAR cachet; "INSTITUT DE FORMATION ET DE RECHERCHE DES NATIONS UNIES" text; "FIRST DAY OF ISSUE OFFICIAL GENEVA CACHET" text; Small UN logo; Reverse: "EDITION DES NATIONS UNIES, GENÈVE"
Addressee/Sender: Sender is UNITAR (implied by cachet)