Georges Lapchine (Georgi Alexandrovich Lapchine. Georgiy Alexandrovich Lapchine)

1885-1950, Russian painter.
http://www.artnet.com/artists/georgi-alexandrovich-lapchine/
via : https://www.fineartphotographyvideoart.com/2014/11/Georges-Lapchine.html
via : https://www.tuttartpitturasculturapoesiamusica.com/2015/12/Georges-Lapchine.html