Paul Cadmus was an American artist widely known for his egg tempera paintings of gritty social interactions in urban settings. He also produced many highly finished drawings of single nude male figures. His paintings combine elements of eroticism and social critique in a style often called magic realism.
Paul Cadmus 1937, by Carl Van Vechten
The Fleet's In! (1934), cropped view
Tempera, also known as egg tempera, is a permanent, fast-drying painting medium consisting of pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done in this medium. Tempera paintings are very long-lasting, and examples from the first century AD still exist. Egg tempera was a primary method of painting until after 1500 when it was superseded by oil painting. A paint consisting of pigment and binder commonly used in the United States as poster paint is also often referred to as "tempera paint", although the binders in this paint are different from traditional tempera paint.
Crevole Madonna by Duccio, tempera with gold ground on wood, 1284, Siena
A 1367 tempera on wood by Niccolò Semitecolo
Pietro Lorenzetti's Tarlati polyptych, Tempera and gold on panel, 1320
Spanish, Altar Frontal with Christ in Majesty and the Life of Saint Martin, 1250, The Walters Art Museum