Vintage lustreware teacup with hand-painted purple flowers and gold trim.

Lustreware, a type of pottery with a metallic, iridescent glaze, gained significant popularity in the late 19th and early 20th centuries. This decorative effect is achieved by applying metallic oxides to the surface of the fired glaze and then refiring it in a reducing atmosphere. It was particularly favored for teacups, vases, and decorative objects, often featuring floral motifs and delicate designs.

Brands like Royal Sealy and Lefton were well-known for producing such decorative ceramics, often for the export market, particularly from Japan. These pieces were popular as affordable yet attractive additions to home decor, especially during the mid-20th century, and are now collected for their nostalgic appeal and charming aesthetics.