"It began with excalibur". 

 - Videocassette (VHS)(ca. 30 min.) :sd., col., 1/2 in. 
<br/><br/> Steel is the magic metal which is so much around us we take it for granted. It comes from iron. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alloys.<br/>Iron.<br/>Metals.<br/>Steel.