This obstetrical wax model represents the application of forceps in a breech birth. In this situation, with the placenta in anterior fundal position, the forceps are applied with the blades below the trunk of the fetus, along the transverse diameter of the pelvis, in order to raise the trunk and disengage the head.

The model was commissioned by Felice Fontana, who was working on the installation of the Museo di Fisica e Storia Naturale of Florence, from the sculptor Giuseppe Ferrini and his assistant Clemente Susini.