

Made in Birmingham by the firm Anstey & Wilson as part of their Yeoman Plate range dating around the 1930s to 1950s. Yeoman Plate was established in Birmingham, England, and is known for producing fine silver plated items. They specialised in creating elegant tableware and decorative pieces using Electro Plated Nickel Silver (EPNS), a process that involves electroplating a base metal with a layer of silver.
The esteemed Yeoman Of England Company began production in 1897 in the Victorian era and merged with Douglas Pell Silverware in 1972 during the reign of Queen Elizabeth II. The company produced high quality silver plate tableware, hollowware & gift ware in Sawbridgeworth, Hertfordshire, England. The firm were suppliers to Harrods and other prestigious names worldwide, including Asprey & Garrard, Royal Palaces, Liberty, Fortnum & Mason and Goldsmiths. Cobalt blue is a blue pigment made by sintering cobalt oxide with alumina at 1200°C.
It is extremely stable and has historically been used as a coloring agent in ceramics (especially Chinese porcelain), jewelry, and paint. Transparent glasses are tinted with the silica-based cobalt pigment smalt. Cobalt glass, known as "smalt" when ground as a pigment, is a deep blue coloured glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt. Cobalt is a very intense glass colourant and very little is required to show a noticeable amount of color. Cobalt blue glass is also used as an optical filter in flame tests to filter out the yellow flame caused by the contamination of sodium, and expand the ability to see violet and blue hues. Cobalt glass is popular with collectors and is appreciated for its attractive colour.