Were these glass items used daily?

Many items served practical functions in nineteenth-century households, including decanters for wine, tableware for dining, and chemist bottles for apothecary storage. Scent bottles and vinaigrettes were carried daily in ladies travelling sets and reticules for personal freshening. Larger decorative objects and oil lamps remained stationary in drawing rooms and parlours. Table salts and mustard pots saw regular service during formal dining occasions.

How can I tell Bristol blue from later glass?

Examine the base of the vessel for pontil marks left by the punty rod during hand-blowing. Nineteenth-century pieces typically exhibit irregular thickness, tiny air bubbles trapped within the metal, and expected surface wear from handling. Inspect the colour saturation, as genuine nineteenth-century cobalt glass possesses a deep, dense tone without modern chemical tints. The presence of period hallmarks on attached silver mounts helps confirm the dating.

Can I display these pieces in sunlight?

Direct, prolonged exposure to harsh sunlight can occasionally cause chemical shifts in older glass or degrade delicate enamel and gilt decorations over time. Position your collection away from south-facing windows where thermal shock or fading might occur. Ambient room lighting highlights the rich cobalt tones effectively without risking material damage. Ensure shelves are stable and lined with protective material to prevent scratching the bases.