Recently a whale was discovered under the residue of a 17th Century painting, and now scientists have discovered a mystery man underneath a famous Picasso masterpiece. According to the AP, the conservators had suspected there was something lurking below the painting since the 1950s.

Now through the use of infrared imagery, they found this bearded and bow-tied man underneath the artist’s 1901 “Blue Room” painting. Conservators at the Phillips Collection, who have been working for years on getting a clear image of the figure—just releasing their findings this week, are now trying to figure out who the man is. So far their detective work has only ruled out that it’s a self portrait.

Curator Susan Behrends Frank explained, “When he had an idea, you know, he just had to get it down and realize it. He could not afford to acquire new canvases every time he had an idea that he wanted to pursue. He worked sometimes on cardboard because canvas was so much more expensive.” This isn’t the first time a Picasso was found under a Picasso—”La Vie” was discovered to be reworked, and at the Guggenheim a man was found in “Woman Ironing.”

“The Blue Room” is currently on tour, but in 2017 the first exhibit focused on it will open, and include more about this man’s portrait.