A lidded cylindrical container used in antiquity for storing toilet articles such as mirrors and combs and also in religious ceremonies for holding ritual utensils. Cistae (pl.) were made of pottery, metal, wood and stone.  Web resource here.

Ficoroni-cistaNovios Plautios. The Ficoroni Cista.  Bronze. Ca. 350-300 BCE. Museo Nazionale di Villa Giulia, Rome.