How do I identify an 18th-century mirror?

Eighteenth-century examples, including George II and Georgian pieces, generally display hand-carved wooden frames beneath the gesso and gold leaf rather than mass-produced composition ornament. They frequently house original mercury glass plates with natural foxing. Construction methods on these earlier items show traditional joinery and heavier timber bases compared to later Victorian reproductions.

Where should I hang an overmantel mirror?

Overmantel mirrors are traditionally proportioned to hang directly above a fireplace mantelpiece. Their wide frames and expansive glass plates were engineered to draw the eye and reflect room interiors. Ensure the wall structure and fixings can support the substantial weight of these carved wood and gesso frames.

What causes foxing in mirror glass?

Foxing occurs when atmospheric moisture penetrates behind the glass plate and reacts with the silvering or mercury backing. This chemical breakdown creates dark spots and cloudy patches across the reflective surface. Collectors often value this natural ageing process as evidence of genuine age on 18th-century and 19th-century mirror glass.