Horadam Aquarell - Sögulegar litir - Cassler brownCassler brown 15 ml (14 675 006) Warm, semi transparent brown tone from brown coal (NBr8) Good lightfastness Already known in the 16th century, widespread from the 17th to 19th centuries Popular pigment until the 1960s Replaced since the 1970s by more resistant, similarly glazing pigments Hardly available anymore in art supplies Appreciated by van Dyck, Rembrandt, Rubens Recognisable in historical paintings as a warm, transparent brown, often mixed