Sleeping Cat: Ko Imari Type, 1800s. Animal, fowl, and marine subjects became popular scenes on porcelain produced at the beginning of the 18th century from the kilns in the Imari region. Even small figures like this were labor intensive. First, the porcelain form was created and fired. Gold-brown spots of underglaze were added and then the figurine was fired at a high temperature. The final details were added in enamel, and the figure was fired at a reduced temperature.