Louis-Rémy Robert, “Jacques-Joseph Ebelman on his Deathbed,” 1852. Waxed paper negative. Source: Metropolitan Museum of Art. From the museum’s description online: This paper negative, from the collection of Robert’s descendants, shows Jacques-Joseph Ebelmen, director of the Sèvres porcelain factory, on his deathbed March 31, 1852. From its inception, photography was enlisted to record the faces of the deceased - it was, in effect, a new type of death mask. 

Louis-Rémy Robert, “Jacques-Joseph Ebelman on his Deathbed,” 1852. Waxed paper negative. Source: Metropolitan Museum of Art.

From the museum’s description online:

This paper negative, from the collection of Robert’s descendants, shows Jacques-Joseph Ebelmen, director of the Sèvres porcelain factory, on his deathbed March 31, 1852. From its inception, photography was enlisted to record the faces of the deceased - it was, in effect, a new type of death mask.