Erté

Romain de Tirtoff (1892 – 1990) was a Russian-born French  artist and designer known by the pseudonym  Erté, the French pronunciation of his initials, R.T. He was a diversely-talented 20th century artist and designer who flourished in an array of fields, including fashion, jewellery, graphic arts, costume and set design for film, theatre, and opera, and interior decor.

The Coincidental Dandy has a nice post about Erté