Wagner produced cast aluminum from the very beginning. (as did Griswold). The old catalogs, in many instance, show many more Cast Aluminum pieces than Cast Iron, IMO. This is where the old catalog reprints really come in handy. Magnalite is 'newer'. If you check the pdf section, you will find a few catalogs there, including one that shows Cast Aluminum,Hammercast, and Magnalite, all in one catalog. :)