I've produced PBR textures, cleaned the model, and built a low poly mesh based on the original scan from The British Museum.
Original here: https://sketchfab.com/models/1e03509704a3490e99a173e53b93e282?ref=related
Part of grey and pink granodiorite stela bearing priestly decree concerning Ptolemy V in three blocks of text: Hieroglyphic (14 lines), Demotic (32 lines) and Greek (54 lines). The inscription is a decree passed by a council of priests, one of a series that affirm the royal cult of the 13 year-old Ptolemy V on the first anniversary of his coronation.