The entire Simpson family was designed so that they would be recognizable in silhouette. The family was crudely drawn because Groening had submitted basic sketches to the animators, assuming they would clean them up; instead, they just traced over his drawings. By coincidence or not, Homer's look bears a resemblance to the cartoon character Adamsson, created by Swedish cartoonist Oscar Jacobsson in 1920. Homer's physical features are generally not used in other characters; for example, in the later seasons, no characters other than Homer, Grampa Simpson, Lenny Leonard, and Krusty the Clown have a similar beard line. When Groening originally designed Homer, he put his initials into the character's hairline and ear: the hairline resembled an 'M', and the right ear resembled a 'G'. Groening decided that this would be too distracting and redesigned the ear to look normal. However, he still draws the ear as a 'G' when he draws pictures of Homer for fans. The basic shape of Homer's head is described by director Mark Kirkland as a tube-shaped coffee can with a salad bowl on top. During the shorts, the animators experimented with the way Homer would move his mouth when talking. At one point, his mouth would stretch out back "beyond his beardline"; but this was dropped when it got "out of control." In some early episodes, Homer's hair was rounded rather than sharply pointed because animation director Wes Archer felt it should look disheveled. Homer's hair evolved to be consistently pointed. During the first three seasons, Homer's design for some close-up shots included small lines which were meant to be eyebrows. Groening strongly disliked them and they were eventually dropped.