How do I date a vintage onyx table lamp?

Dating relies on stylistic clues like Victorian brass Corinthian capitals, French ormolu mounts from the nineteenth century, or stepped geometric shapes from the 1930s Art Deco period. Examining the wiring channels, base construction, and metal casting techniques also helps place the piece within its correct decade or reign.

Are these lamps converted from oil lamps?

Many surviving examples from the late Victorian and Edwardian eras started life as burning lamps before later electrical conversion. You can often identify these by the presence of original burner assemblies, threaded galleries, or central brass fonts adapted to hold modern lamp holders.

How do I clean and maintain onyx?

Onyx is a softer, calcareous stone that reacts poorly to acidic cleaners, harsh solvents, or excessive water during routine maintenance. Dust the stone gently with a dry microfibre cloth and protect the metal mounts from moisture to preserve the polished surface over time.

What styles are common in these lamps?

The dominant styles range from Victorian and Edwardian revival columns to French neoclassical designs and streamlined 1930s Art Deco forms. Makers frequently employed classical architectural motifs like Corinthian capitals alongside decorative metal paw feet and cherub embellishments.