Unsigned, believed to be in the style of Alexander Calder, American, 1898 to 1976, color lithograph print titled "Two Serpents in Black and Red" from Derriere le Miroir, circa 1973. Matted and framed. Alexander Calder was an American sculptor known both for his innovative mobiles that embrace chance in their aesthetic, his static stabiles, and his monumental public sculptures. Mid-Century Prints And American Art Collectibles.