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Magnetism: electrical equipment and magnetic phenomena. Adapted from a coloured engraving by J. Emslie, (1850). Wellcome Collection.
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.