That was reserved for Gutenberg. As an experienced metalworker, he grasped that printing could best be achieved with movable letters made of, not pottery or wood, but metal.
इन्हें बनाने के लिए धातुओं को तराशने या आग में सेंकने के बजाय उन्हें पिघलाकर साँचे में ढालना था ।