Adapted illustration representing the evolution of organisms with correlation to geologic eras and periods, depicted by the coloured bands and strata on the left. © DEA / Universal Images Group / Science Museum Group 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.