Leopold Schmutzler
1864–1940, Germany.
http://www.artnet.com/artists/leopold-schmutzler/
via : https://www.catherinelarosepoesiaearte.com/2013/11/leopold-schmutzler-1864-1940.html
https://wwwcarolhu.blogspot.com/2016/02/leopold-schmutzler-1864-1941-czech-born.html
https://www.catherinelarosepoesiaearte.com/2021/01/leopold-schmutzler-german-1864-1940.html