A stone-age artifact is found in the center of the chariot...
None other than a digging stick weight.
It is a stone with a hole bored in it to allow for placement on a stick.
These are quite common in Southern Africa and were extensively used but the San and others.
This turns a regular stick into a far more effective digging instrument. Very useful when foraging for bulbs and roots or hunting for animals hiding in burrows.
This one has been chained in place to prevent removal by passers by.
Below is a painting of a procession of San women all carrying digging sticks (note the weights) and leather skins full of foraged goodies on their backs.
This painting is from Mpongweni cave in the Natal Drakensburg.