This paper presents a detailed investigation of an Early Bronze Age clay sealing from Boz Hoyuk, a settlement mound located along the Buyuk Menderes valley (inland western Anatolia). The artefact, clearly local in manufacture, was employed as a stopper to seal a bottle/flask and impressed with two different stamp seals. These elements are compared to all other published contemporary sealings in western and central Anatolia, in order to understand the degree of complexity of sealing practices in the region. In turn, evidence of Early Bronze Age Anatolian sealing practices is discussed in relation to the available evidence regarding the degree of social complexity in local communities. It is suggested that, during the Early Bronze Age, sealings were employed for product branding rather than control over storage and redistribution of commodities, and only at the beginning of the second millennium BC did the region witness the introduction of complex administrative practices.