Alexander Calder, American, 1898 to 1976, a color lithograph print titled Les deux lunes, circa 1970. Signed in the plate lower right. Additionally signed upper left and numbered 18 of 150. Matted. With the certificate of authenticity to the back. Alexander Calder was a 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.