Postcard "Vice Admiral S.O. Makarov"

The original postcard is in very good collectible condition. I didn't get the mail. Quite rare. Guarantee of authenticity. Russian Russian naval figure, hero of the Russo—Japanese War, oceanographer, polar explorer, shipbuilder, Vice Admiral (08/20/1896) Stepan Osipovich Makarov (December 27, 1848 [January 8, 1849], Nikolaev - March 31 [April 13] 1904, near Port Arthur) was a Russian naval figure, hero of the Russo—Japanese War, oceanographer, polar explorer, shipbuilder, vice Admiral (08/20/1896). Inventor of mine transport, developer of the theory of unsinkability, pioneer of the use of icebreakers. In 1895, he developed the Russian semaphore alphabet. He died during the Russian-Japanese war.