During the expedition , he produced many sketches , drawings and water colours on the subject of the Caspian Sea .
Timirev participated in a science and research expedition to the Caspian Sea in 1935 .
During the expedition , Timirev produced many sketches , drawings and water colours on the subject of the Caspian Sea .
Timirev participated in a science and research expedition to the Caspian Sea in 1935 .