Adapted from a colour theory diagram by chemist and Nobel laureate, Wilhelm Ostwald (1916). Ostwald introduced grey-scale value of brightness into colour theory, influencing Piet Mondrian and the De Stijl movement. 170mm x 120mm (6 3/4" x 4 3/4"). Blank inside. Individually wrapped in a compostable bag with a 120gsm recycled kraft envelope. Printed with vegetable-based inks on a carbon neutral press using responsibly sourced, 300gsm Italian paper.
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