Thalia - Muse of Poetry, 19 × 19 cm Urania – Muse of Astronomy, 19 × 19 cm Erato – Muse of Erotic Poetry, 19 × 19 cm Melpomene – Muse of Tragedy, 19 × 19 cm Attached is the certificate of authenticity issued by PhDr. P. Bregantová, the artist’s daughter.