Prussian Green is a green transparent oil colour with a yellow undertone. It is lightfast and permanent. It is also called Brunswick Green; after the location where it was first manufactured.
Winsor Green (Phthalo) is a brilliant transparent green pigment with a blue undertone. It is made from the modern pigment Phthalocyanine which was introduced in 1930s.
Copper is a unique brown colour with warm red undertones. Due to its innovative combination of pigments, it creates a metal sheen closely resembling that of copper.
Pewter is a unique silver grey oil colour which is semi-opaque. Due to its unusual combination of pigments, it creates a metal sheen closely resembling that of pewter.