To become a master locksmith an apprentice had to produce a ‘masterpiece’. Here the locksmith demonstrated his skill by creating a robust and secure lock and refining its appearance with delicate etching.

Similar patterns decorated other 16th century goods and furnishings, from embroidery to tooled leather. Designs circulated among craftspeople through printed versions on paper and were widely recommended in pattern books.

From V&A via Hominis Aevum.