Pewter known as "trifling metal" or "trifle", was used for holloware and is made up of fine metal with approximately 4% lead. The last type of pewter, known as "lay" or "ley" metal, was used for items that were not in contact with food or drink. It consisted of tin with 15% lead. These three alloys were used with little variation until the 20th century. Older pewters with higher lead content are heavier, tarnish faster, and oxidation gives them a darker silver-gray color. Pewters containing lead are no longer used in items that will come in contact with the human body
Square Mouthed Vases culture Square Mouthed Vases culture The Square Mouthed Vases culture (Italian: "cultura dei vasi a bocca quadrata") is a culture of the Middle Neolithic period, widespread in northern Italy during the fifth millennium BC. The name comes from the characteristic type of vessel, which has a square mouthpiece instead of circular. The culture is divided into three different time periods, depending on the style of the pottery decoration: the oldest is known as the Finale-Quinziano and shows a decoration of small incisions and graffiti; the middle period or Rivoli-Chiozza is characterized by meander and spiral decorations; while the most recent phase,