Fragment of a frieze from the church of San Martino ai Monti, Rome, Italy, (1928). 'About 850...time of Leo IV. (847-855). The bird frieze was carried under the roof of the basilica. Its value is in its rareness; it is the only one in Rome of which a fragment is preserved'. After Joseph Wilpert. Plate XLIX, fig 108, from "An Encyclopaedia of Colour Decoration from the Earliest Times to the Middle of the XIXth Century" with explanatory text by Helmuth Bossert. [Ernst Wasmuth Ltd., Berlin, 1928]