The Armenian Revolutionary Federation Western U.S. Central Committee’s public relations office has announced that four commemorative stamps have been issued to mark the ARF’s 120th anniversary.

The stamps have also been approved by the U.S. Postal Service and may be used to send regular mail.

The committee has also published a brochure and envelopes to accompany each stamp, with a brief description of the images and their historic significance, Asbarez reported.