491443 Plaque depicting St. Thomas and St. Matthew, c.1160 (gilded copper, champlev矇 enamel) by Mosan School, (12th century); 6x6.2 cm; Cleveland Museum of Art, OH, USA; (add.info.: Mosan, Valley of the Meuse. It is likely this pair of enamel plaques depicting the apostles Simon with Thaddeus and Thomas with Matthew once formed part of the decoration of a portable altar, a reliquary triptych, or some other kind of liturgical object.); Purchase from the J. H. Wade Fund; European, out of copyright.