Copper-red Porcelain Butterflies

Copper-red porcelain butterflies. Copper-red glazes are glazes containing copper which turn red when fired in a reducing atmosphere. The earliest known copper-red glaze occurs on wares made in Shanxi during the Tang dynasty. Jun kilns of the Song dynasty commonly used copper glazes. The sacrificial xianhong of the early Ming dynasty and its Qing dynasty copies, the Qing dynasty jihong (same but of the period), langyaohong, Peach-bloom and the Qing Jun red, which was really a monochrome red of the flambé type are all copper based red glazes.  Reference: Gotheborg.com

Below are some examples of copper-red porcelain decorated with butterflies.