Monumental floor mosaic (5.82 × 3.13 m) representing a battle between the Macedonians and Persians, who were led by Alexander the Great and Darius respectively. Discovered in October 1831 in the ‘Casa del Fauno’ in Pompeii (Regio VI,12; now Naples, MN). The work in opus vermiculatum ( Mosaic), preserved in part only, consists of more than 1.5 million small stones coloured with mineral dye. Large, missing sections filled with stucco, mainly on the left half, and areas patched-up with coarser stones are repairs carried out in a…