A very nice cover from Estonia, depicting a miniature sheet and a single stamp, both issued in 2014, commemorating the 25th. anniversary of the "Baltic Chain of Freedom".
The Baltic Way was a peaceful political demonstration which took place on 23 August 1989 when approximately two million people joined their hands, forming a 600 km long human chaing through the Baltic countries, thus demonstrating their unity in their efforts towards freedom.
To learn more about this event you may click at http://www.thebalticway.eu/en/history/