637 - Bardaï (Tibesti). - Drawing by Maximilien Bruggmann representing six figures from a fresco that contains eighteen in total, spanning 1.55 m in length. Each figure measures about 0.20 m in height. It may depict a dance scene. Each individual wears a feather, sometimes two, on their head. It is unclear if they are dressed, as their visible genitalia suggest otherwise. However, it is likely not ithyphallicism.