Książka w j. angielskim. The fourth volume in a series which describes the history of the little-known emblems and distinctive markings of early Russian military aircraft from the revolution to the Russian exit from World War One. Volume 4 describes aircraft used by aviation units which were fighting against the Soviets. The authors have managed to collect, and in some cases partially reconstruct, the majority of emblems and signs used in Russia during this period by military aviation units.