The UN is issuing a set of stamps to commemorate the 25th anniversary of the Comprehensive Nuclear Test Ban Treaty.

Tristan's CTBTO Station features on United Nations Stamp

United Nations stamp commorating the 25th anniversary of the CTBTO, showing the Tristan station.
The UN stamp showing Tristan's Radionuclide Station (during installation)
Many people do not know that the United Nations runs an independent Postal Administration, that issues its own stamps for use by the UN offices in New York, Geneva, and Vienna.

On the 27th August 2021, the UNPA will issue a personalised stamp sheet for the Vienna offices. celebrating the "25th Anniversary of the CTBTO – Putting an end to nuclear explosions". The sheet is composed of 10 different €1.00 denominated stamps.

The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) marks 25 years of monitoring for nuclear tests worldwide. The Comprehensive Nuclear-Test-Ban Treaty (CTBT) bans all nuclear explosions, anywhere on Earth. Its unique verification regime, including 300+ monitoring facilities around the globe using four state-of-the-art technologies, makes sure no nuclear explosion can go undetected. Data from the system also contributes to a wide range of civil and scientific work, from tsunami warnings to research on climate change.

United Nations Mint Stamps commorating the 25th anniversary of the CTBTO

The full stamps sheet. (Images provided by the United Nations Postal Administration, Europe.)

The Stamp Designs

The ten stamps in the full sheet (shown above) depict from left to right down: Hydroacoustic Station HA4, Crozet Islands; Hydroacoustic Station HA3, Chile; Radionuclide Station RN68, Tristan da Cunha; Radionuclide Station RN33, Germany; Infrasound Station IS33, Madagascar; Infrasound Station IS55; Antarctica; Auxiliary Seismic Station AS74, Oman; Auxiliary Seismic Station AS69, New Zealand;  Field Exercise, Kazakhstan and Field Exercise, Jordan. The tabs feature the CTBTO logo and the background image shows the CTBTO International Data Centre in Austria.

UNPA customers with standing order requirements for Vienna special event sheets will automatically receive this item through their accounts. All other customers can purchase this special event sheet in either mint or cancelled condition by using the order form attached to the UN Postal Administration's latest philatelic bulletin Fascination.