What is green overlay crystal?

Green overlay crystal consists of a clear crystal base covered by a distinct outer layer of green glass. Artisans cut patterns through the green layer to expose the clear glass underneath. This technique creates high contrast and allows for intricate geometric or floral designs on vases, decanters and glassware.

How do I identify uranium glass?

Uranium glass displays a vivid yellow-green or green colour under natural light and emits a bright green fluorescence when exposed to ultraviolet light. The uranium oxide was added to the glass batch as a colouring agent. Most pieces date from the nineteenth and early twentieth centuries, appearing in various decorative tableware forms.

What are mantel lustres used for?

Mantel lustres served as decorative ornamental centerpieces placed on fireplace mantelpieces during the Victorian period. Their primary function was to catch and reflect candlelight or daylight through suspended crystal prisms. Pairs of these lustres were typically arranged alongside clocks or candelabras on formal mantel shelves.

How do I date antique glassware?

Dating relies on stylistic markers, manufacturing techniques, pontil marks and factory signatures where present. Georgian pieces often display rough pontil scars and heavier hand-blown characteristics, while Art Deco items show geometric mouldings and machine-polished facets. Comparing forms to documented examples from makers such as Val Saint Lambert or Stuart helps narrow the production era.