Quick scan with my phone, about 70 photos used.

This plaque comes from the Parthenon’s frieze, from 447-432 BC. It illustrates one of the main events during the celebreation of the Great Panatheans, wich happened every four years in Athenes : Two priests and six Ergastines, young women in charge of sewing the pelos offered to Athena, walk in a procession towards the gods assembly.

https://www.louvre.fr/oeuvre-notices/plaque-des-ergastines