In this terracotta model, commissioned by Giuseppe Galletti, the fetus, in shoulder presentation or transverse presentation, has its head in the left half of the uterus and its back facing the anterior part. After the rupture of the fetal membranes, the waters have flowed out and cervix, no longer maintained in an extended position by a large fetal mass, has shortened and is now incompletely distended. The uterine walls are thus resting on the fetal body; the two extremities of the fetus—the lower part of the trunk (podex) and the head—are pressed together and the spinal column bends. The placenta is in posterior fundal position.