How does a duplex burner work?

A duplex burner uses two parallel flat wicks adjusted simultaneously by twin thumbwheels. This arrangement draws more fuel to the flame to create a significantly brighter light than single-wick burners. The metal gallery secures the shade above the flame while allowing sufficient airflow for a clean burn without excessive smoke.

What fuels did these lamps burn?

These lamps were manufactured to burn paraffin or kerosene, which became widely available as a domestic fuel during the Victorian period. The heavy glass or ceramic fonts safely contained the liquid fuel below the burner assembly. Modern users generally keep these pieces for display rather than active daily lighting.

How do I date a brass oil lamp?

Dating relies on stylistic clues such as column orders, burner stamps, and the manufacturing methods visible in the brass casting. Mid-Victorian examples often favour classical revival motifs like Corinthian columns. Later Edwardian and early twentieth-century pieces introduce softer lines and different proportions, sometimes incorporating Art Nouveau elements.

Are the glass shades original to the lamps?

Shades on nineteenth-century lighting were frequently vulnerable to breakages and replacements over decades of domestic use. Matching the fitter size of the shade to the brass gallery ensures a correct and secure seating. Cranberry glass and etched tulip shades are typical pairings for quality Victorian frames.