Sacral Inventories and Archaeological Reality in the Isis Sanctuaries oustide Egypt (Late Hellenistic and Roman Periods)

What kind of material can be found in Isiac sanctuaries, that is, those devoted to Isis, and her companion Sarapis, as well as the synnaoi theoi, Anubis and Harpocrates? To answer this question, we can study the sacral inventories, but they are few. Sundry information is also to be found in literary and epigraphical texts (especially dedications) and iconography, but all these sources have to be linked with the material discovered in sanctuaries. Three main groups of material can be identified: first of all, the statue and everything connected to it (such as garments and jewels); then, the material used to worship the god or goddess during everyday worship or on different feasts; finally, objects used to create a special atmosphere peculiar to a mystery cult.