Pewter (such as cups, plates, or jewelry) due to health concerns stemming from the lead content. Modern pewters are available that are completely free of lead, although many pewters containing lead are still being produced for other purposes. A typical European casting alloy contains 94% tin, 1% copper, and 5% antimony. A European pewter sheet would contain 92% tin, 2% copper, and 6% antimony. Asian pewter, produced mostly in Malaysia, Singapore, and Thailand, contains a higher percentage of tin, usually 97.5% tin, 1% copper, and 1.5% antimony. This makes the alloy slightly softer. So-called "Mexican pewter" is an alloy of aluminum,
The Metal Monster city of sentient cubes, globes and tetrahedrons, capable of joining together and forming colossal shapes, and wielding death rays and other armaments of destruction. They are led to a hidden valley occupied by what they name "The Metal Monster", a strange metal city occupied by the metal animate Things Norhala commands. This city is governed by what they call the Metal Emperor, assisted by the Keeper of the Cones. Ruth is slowly being converted by Norhala to become like her; her little sister. Martin, her brother, tries shooting the Metal Emperor, who retaliates with a ray blast, putting Martin in