被认为是古代中国所特有的铅钡玻璃,是早在公元3世纪就已经出现在日本的几种玻璃类型之一。相关的先进青铜时代文化和少量的铁器表明,铅钡玻璃也是早期铁器时代日本、中国和韩国之间交往互动和贸易关系的一个标志。进一步的证据表明,大部分铅钡玻璃的传播在公元2世纪末即已停止。在日本,虽然管状珠是最常见的铅钡玻璃文物,其他的物品,包括璧、球形玻璃珠及逗号型玻璃珠也同样存在。日本发现的铅钡玻璃管状珠可基于制造方法和形状分为三组。最令人惊讶的是,最常见的用中国蓝着色的日本管状珠,却尚未在朝鲜半岛发现。 The lead-barium glass, which is considered to be unique to ancient China, was one of several types of glass that had appeared in Japan as early as the 3rd century AD. The relevant advanced Bronze Age culture and a small amount of iron suggest that lead-barium glass is also a hallmark of Japan’s interaction with China and South Korea in the early Iron Age. Further evidence indicates that the spread of most lead-barium glasses ceased at the end of the 2nd century. In Japan, although tubular beads are the most common lead-barium glass artifacts, other items, including birch, spherical glass beads, and comma glass beads are also present. Lead-barium glass tubular beads found in Japan can be classified into three groups based on the manufacturing method and shape. Most surprisingly, the most common Japanese blue-colored Japanese tubular beads have not yet been found in the Korean peninsula.