Russia | 100 Rubley, 2015 – Russia's Annexation of Crimea | Obverse: The Monument to the Sunken Ships in Sevastopol Bay, Layout of Sevastopol city, and "Memorial to the Heroic Defense of Sevastopol in 1941-1942" Prefix letter КС (Krym-Sevastopol) | Reverse: Swallow's Nest castle on Aurora Cliff overlooking Cape of Ai-Todor in Yalta, Khan’s mosque in Khan's Palace in Bakhchysarai, and radio telescope RT-70 near the town of Yevpatoria | Watermark: Catherine the Great and electrotype jewelry |