A Roman Giallo Antico Marble Herm Head of Dionysos Circa 2nd Century A.D. Height 6 inches. Property from a Midwest Private Collection Provenance: Private Collection, Ohio. Note: Giallo antico was one of the first colored marbles to be imported into ancient Rome. By the Augustan period, the yellow stone became synonymous with luxury and wealth - frequently appearing in principal public monuments, lavish villas, and private residences throughout the empire.