The poster "Semaphore communication" from 1931.

Paper. The poster is in good collector's condition. The central part of the poster shows all the letters of the alphabet, each of which corresponds to a certain position of the signalman's hands with red flags. There are also service signs and signs of a change of location on the poster. The poster serves as a training manual for signalmen and sailors, visually showing gestures with flags corresponding to the letters of the Russian alphabet. The modern Russian semaphore alphabet was developed in 1895 by Vice Admiral Stepan Osipovich Makarov. Guarantee of authenticity.