How do I operate a duplex burner?

Operating a duplex burner involves trimming the twin cotton wicks evenly and filling the reservoir with refined paraffin oil. Adjust the thumbscrews to raise the wicks slightly above the brass gallery before lighting. Allow the glass chimney to warm gradually to prevent cracking from thermal shock. Extinguish the flame by turning the adjusters downward until the wicks drop below the air vents.

Were these lamps converted to electricity?

Many surviving lamps retain their original oil burners, fonts, and wick mechanisms. Some examples have been wired for modern electrical use while preserving the exterior metalwork and glass shades. Examine the collar and burner assembly closely to determine whether the fuel reservoir remains intact or has been adapted for a cable.

How do I clean opaline and cranberry glass shades?

Wash glass shades gently in warm water using a mild detergent and a soft cloth. Avoid abrasive scouring pads that can scratch delicate hand-painted enamel or gilt decoration. Dry the glass thoroughly with a lint-free cloth before mounting it back onto the brass gallery.

How do I distinguish Victorian from Edwardian lamps?

Victorian examples frequently favour ornate brass castings, Corinthian columns, and deep cranberry or etched glass shades. The aesthetic leans toward heavy ornamentation and rich colours. Edwardian pieces often introduce simpler lines, onyx components, or influences from the Art Nouveau and Secessionist movements, reflecting changing domestic tastes.