Two stamps issued in 1990 to mark the 50th anniversary of the Katyn Massacre (Katyn Crime).
The Katyn massacre was a mass murder of Polish intellectuals, politicians, and military officers by the Soviets in 1940. The number of victims is estimated at about 22,000 and took place in the forests outside of Katyn, near Smolensk, Russia.
A commemorative first day of issue cover and Katyn stamp issued in 1995 by the Polish Post Office.
A postcard and special stamp from Belarus remembering the Katyn Forest Massacre. Posted in 2005.