Producing an enammelled box from copper

The box starts as a thin sheet of copper

After cutting and beating the box takes shape

Grease and impurites are removed with acid

The box is then washed with water

The surface is roughened before coating with enamel

Enamel is made by first crushing glass

Chemicals are mixed with the glass

The mixture is heated

When cool, the enamel is crushed, then mixed with water and clay slurry

The box is dipped in the enamel

Then fired in a kiln

Several layers are needed to prevent warping

The box is now ready for painting

The colours are made from mineral oxides

Each stage is fixed by firing

Enamel paste is used to create raised decoration

A metal mount is fitted to complete the box

Boxes like this one were used for snuff, a type of tobacco