The skilled Egyptian sculptors used to use, to carry out or teach the art of relief, models on small-sized slabs, easily transportable. The use of these models is already known from the New Kingdom (XVI-XII century BC), but it spread more widely in the Late and Ptolemaic period (VII-I century BC). The museum owns two refined slabs of models, in limestone, of unknown origin. One specimen bears the profile face of a sovereign with the blue crown and the ureus, the cobra symbol of royalty. The other model, sculpted on both sides, depicts the profile of a young sovereign, with an elaborate wig, with the ureus on the forehead and a wide necklace, just hinted at. On the back, instead, a female bust with a vulture-shaped headdress is portrayed, a royal as well as divine attribute. The three figures in the two slabs are depicted according to the canons of the older period with the head in profile, the front eye and shoulder, but the stylistic rendering, the rounded face, the thickened lips creased upwards, indicate a later execution, from the beginning of the Ptolemaic Era.