Franz Stiasny produced a large series of bronze

Bronze

Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. It is hard and brittle, and it was particularly significant in antiquity, so much so that the Bronze Age was named after the metal...

portrait medals of important writers, musicians and historical personages in rectangular formats. Stiasny was famous for his portraits of famous composers. Various beautiful bronze medal were cast in Austria, c.1930.
The plaques measure mainly 54mm x 65mm and weigh 107gm.