2019100 Years from the Signing the Treaty of Versailles - First Day Cover

The First World War officially began on July 28th 1914, a month after the Sarajevo assassination, in which Gavrilo Princip killed the Austro-Hungarian heir to the throne Franjo Ferdinand. The Serbian people, though exhausted by warfare into two Balkan wars, are boldly defended in this war. The price of the victory over the enemy was terrible. Compared to the number of inhabitants, Serbia has submitted the largest victims among all participating countries in the First World War ...