The signature of the Greek poet Mitsos Papanikolaou. From his handwritten poem "À Jean Cocteau" (no date).
Crop from https://douridasliterature.com/mitsosPapanikolaou3.jpg // Κομμένο από https://douridasliterature.com/mitsosPapanikolaou3.jpg
Mitsos Papanikolaou (1900-1943) // Μήτσος Παπανικολάου (1900-1943)