La Hantise Stoneware Mask by Ringel Dillzach (1849-1916 French) Monochromatic glaze created by Emile Muller.  Multiple hallmarks, title, signature and factory marks to interior and side.  Size 8 3/4" tall , 6 1/2" wide , 4" deep.  Also in collections Musee de Orsay, and Musee National- Grand Plais. Highly enigmatic fisage of a clairvoiant, obviouly a very unique production from the studio of Ringel Dillzach.