Cranberry glass is a type of glass made by adding bone ash or bone china to molten glass, which gives it a distinctive pink or red hue. This technique was popularized in the 19th century, particularly in Bohemia and England, and became a sought-after material for decorative glassware. Its rich color and often intricate designs made it a popular choice for vases, tableware, and other ornamental items. Pilgrim Glass Corporation, founded in 1903 in Ceredo, West Virginia, became well-known for its hand-blown art glass, including cranberry glass pieces. They often incorporated swirling patterns and applied elements, producing decorative items that are now collected by enthusiasts. The company ceased operations in 2007, making their vintage pieces collectible.