What is (a) The core, or the inner part, of a mold for casting a large hollow object. (b) The bottom part of a mold or of a flask, in distinction from the cope; the drag called?

nowel — (a) The core, or the inner part, of a mold for casting a large hollow object. (b) The bottom part of a mold or of a flask, in distinction from the cope; the drag. (Webster's 1913.)