Prussian Blue: First synthetic color of the Industrial Revolution, discovered by accident in 1704 while a chemist was trying to formulate artificial crimson. Warm blue with more muted tint than Phthalo Blue. It has a high tinting strength, is lightfast, and is especially beautiful in its transparency.

Pigment: Ferri-ammonium ferrocyanide (PB 27:1)
Vehicle: Burnt Plate Oil
Series 2, SEMI-TRANSPARENT, SDS

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