Plain Stem with Air Tear: The glass features a plain stem, which was a common style in Georgian glassware, especially from around 1730 through to 1775. The small, tear-shaped bubble visible within the stem is known as an ''air tear'' and is a deliberate decorative and identifying feature often found in glasses of this period.Bell-shaped Bowl: The bowl appears to be a bell shape, a common bowl form in Georgian drinking glasses, often alongside trumpet, rounded funnel, or ogee shapes.Conical Foot: The base of the glass is a conical foot, which is frequently found on plain stem Georgian glasses. The presence of a rough pontil mark on the underside of the foot would further confirm its 18th-century origin, as polished pontils became common later in the century.Lead Glass Composition: Georgian glasses, including this type, were typically made of lead crystal, a clearer and more brilliant form of glass perfected by George Ravenscroft in the late 17th century, which became a hallm...