Blue glass, produced in China in the 18th and early 19th century. 20 beads varying in color and shape, about ¼”-3/8” diameter and stringing to over 6”. “Lamp work” produced by deposition a thread of molten glass over a turning mandrel. In use in Colonial America by the mid 18th century, beads of this exact type were carried by Lewis and Clarke on their 1804 expedition.