How do I identify an eighteenth-century original?

Examine the construction methods behind the frame, the composition of the gesso layers, and the backing boards. Eighteenth-century pieces typically display hand-cut joinery and period-specific timber shrinkage. Original glass plates often exhibit minor distortions, foxing, and old silvering techniques that differ from modern float glass production. Comparing the carving depth against documented workshop examples helps confirm the period.

What is a parcel-gilt finish?

Parcel-gilt describes objects decorated with gold leaf on selected portions while other areas display polished natural wood. This method creates contrast between the dark grain of walnut or mahogany and bright metallic highlights. Craftsmen used this technique on mid-eighteenth-century frames to emphasise carved mouldings and architectural details without fully gilding the entire surface.

How do I care for antique gilded surfaces?

Dust gilded and carved frames gently using a dry, soft artist brush or ostrich feather duster. Avoid applying commercial cleaning sprays, water, or chemical solvents directly to the gesso and gold leaf. Maintain stable room humidity levels to prevent the underlying wood from expanding or contracting, which can cause the gesso layer to crack and flake.