[Opera] "Martin Famous Opera Velvet...Libretto of Colors" - 1940's Trade Catalogue[8] pp. An attractive trade catalogue of velvet samples, marketed as "Martin Famous Opera Velvet" and with names evoking the opera world such as "Traviata," "La Tosca," and "Leonora." Designed to look and feel like a classic Metropolitan Opera program or libretto, the booklet features an Art Nouveau design of a woman playing a lyre on the cover, and boasts on the verso: "This Libretto of Colors conveys only partially the elegance and grandeur imparted