A Bell Jar is a dome-shaped glass cover originally used in scientific laboratories to create a vacuum or protect delicate experiments. During the Victorian period, bell jars became popular in domestic interiors for displaying taxidermy, clocks, botanical specimens, sculptures, wax flowers and other decorative objects. Antique bell jars are typically made from hand-blown glass with polished rims and are now highly sought after for displaying treasured collectibles while protecting them from dust.