Lushé was a French artist active around 1930. Some of his drawings appeared in the book 'Flagellantismus als Erziehung', written by Joachim Pauly, published in 1972. When I came across the colored artworks I was sure I had seen the artworks before and published them earlier. I discovered them as two albums with black and white sketches in the gallery anonymous artworks. So one mystery resolved 😉
I have attached both the albums below (some artworks are in color as well as in black and white).