STAMP ISSUES RELATED TO ICAO (1945-1977)

Burundi : 25^th Anniversary of United Nations Postal Administration

Issue date: 10/10/1977
	UN buildings by night and UN carmine stamp of 1955 (10^th anniversary of ICAO; stamp-on-stamp).
	Se-tenant block of four stamps.
	Se-tenant block of four stamps - Cancelled to order (CTO).
	Se-tenant block of four stamps – Imperforate.
Se-tenant blocks of 4 in miniature sheets of 6 blocks - Progressive Proofs (total of 8 sheets). With hand-stamped control numbers.
Other Progressive Proofs (total of 5 sheets).
First Day Cover.
Background: The stamps of this issue were printed in se-tenant blocks of four in a stamp‑on‑stamp format, each design in a block having the same background. Each block features a different photograph of the interior/exterior of UN building. Superimposed on the stamps are different stamps used by the United Nations Postal Administration (UNPA) in its 25‑year history. The issue holds 24 stamps and 2 souvenir sheets (see here-below). Burundi issued this set of stamps one year after the actual year commemorating the 25^th anniversary of the UNPA, as the UN postal service was inaugurated on 24 October 1951. Burundi became a Contracting State of ICAO on 18 February 1968, bringing ICAO’s total membership to 166. Additional information on the UN Postal Administration can be found at the following link: ICAO and the United Nations Postal Administration.