This fourth volume is a revision of the seventh edition of Willis, with substantial amendments and additions.

Approximately 190 inscriptions from the Manisa Museum in Turkey are published for the first time in this catalogue, as well as many other fragmentary inscriptions. They include royal documents, letters from Roman authorities, records of constructions, honorary insciptions, dedications, gladiatorial monuments, funerary inscriptions, cinerary chests and vases, and Christian inscriptions. Though including some important documents, unfortunately many of the inscriptions are of unknown provenance.