The artworks on these metal signs are actual artworks that were used during the WW2. All of these artworks were used in Britain before, during and immediately after the Second World War. Product Details -Available in A4 (28.3 cm x 19.7 cm x 0.5 mm) - Our aluminium metal sign designs are produced using a professional sublimation printer and then transferred onto the metal sign via heat press machine. -Actual colours may vary slightly as each monitor displays colours differently.