What is a blue enamel plaque?

A blue enamel plaque is a decorative or advertising object made by fusing powdered glass to a metal base, featuring shades of blue as the dominant background or colour scheme. These pieces range from large industrial wall signs and commercial signage to intricate Japanese chargers and small silver boxes with inset plaques.

How were advertising signs used?

Advertising signs were displayed outside shops, railway stations, and commercial premises to promote household products, oils, and foodstuffs to the public. Built with heavy iron or steel and coated in durable vitreous enamel, they were designed to withstand outdoor weather conditions for decades.

How do I date a cloisonne plaque?

Dating relies on stylistic markers, the composition of the metal base, and the characteristics of the enamel colours used by the workshop. Meiji and Edo period Japanese pieces often display distinct motifs like dragons, koi, and chrysanthemums executed with specific wirework techniques unique to the nineteenth century.

How do I display a charger?

Large chargers and plaques are typically mounted securely on walls using specialist plate hangers or displayed upright on sturdy wooden brackets. Due to their weight and the brittle nature of vitreous enamel, proper support is essential to protect the edges and the glazed surface.