At the entrance of one of the Hypogeum's painted rooms, the faint engraved impression of a large human hand, also arbitrarily assigned to the Neolithic, may still be seen. It 'has parallels in similar designs in Palaeolithic sites at Gargas, El Castillo, and particularly with Montespan in the Franco-Cantabrian region.' The impression shows a hand with six fingers [a condition known as Polydactyly that is also seen on at least one of the 'Fat Lady' figures on show in the National Museum of Archaeology].