How do duplex burners work?

A duplex burner uses two parallel flat wicks fed from a shared fuel reservoir. Turning the thumbwheel raises both wicks simultaneously to produce a wide, bright flame. A twin-pronged gallery holds a glass chimney above the flame to steady the draft and ensure a clean, smoke-free burn.

Are these lamps safe to use with oil?

These historical lamps were designed for paraffin or lamp oil, but contemporary safety standards require careful inspection of the metal founts and internal mechanisms before use. Many collectors choose to wire them for electricity or display them strictly as decorative objects rather than burning fuel.

How do I date a brass oil lamp?

Dating relies on stylistic details, such as the architectural form of the column, the weight of the brass casting, and the manufacturing marks stamped on the burner turning knobs. Victorian pieces often display heavier cast components and classical revival motifs, while Edwardian examples tend toward slender lines and simpler collars.

What is the purpose of the glass shade?

The large glass shade diffuses the intense light of the double wick and shields the eye from the bright flame. Coloured varieties also cast a warm hue across the room. Matching shades often feature hand-etched botanical patterns or ruffled rims characteristic of late nineteenth-century glasshouses.