GB7060 Gamblin 1980 Oil Colors are made with the same pure pigments that go into Gamblin's Artist Oils. In addition, they use the same process of mixing, milling, filling and hand labeling. 1980 colors are formulated with pure pigments, the finest refined linseed oil and marble dust (calcium carbonate). More affordable colors have been made with these three ingredients since oil painting began. With 1980 colors, artists experience colors that are true, without homogenized texture or muddy color mixtures. Gamblin's approach of using both traditional raw materials and processes ensures luscious working properties.