Conducts research and collects data on the global history of labour, workers, and labour relations

Paying with Coins at a Sichuan Market Place in Han-China

 Three pairs of buyers and sellers on a market place, situated near a town gate (the building to the right with a drum pending in the upper part) and an open kitchen-diner (left). Tile from a tomb in Sichuan, erected in the Han period (202 BCE -220 CE)