Thank you Mr Otmane for this 1983 FDC! Scenes from the UNESCO protected Tassili N'ajjer National Park are featured on this 'Tassili World Patrimony' set. Some of the 15,000+ rock art from this site is shown on the lower left stamp.
Thank you Mr Otmane for this 1981 FDC! More rock art from Tassili N'ajjer National Park. The bulls on the top right are from 6000 BCE.