This project expands Antonio Vega Macotela’s long-term research into exhaustion as an operation of scarcity and wealth, as well as it sets out an inquiry into the way value is produced within the complex set of interdependent relations that make up our global economy. The existence of “mills of blood” can be traced back to IV A .c in Grece This kind of machine was an apparatus used in places where neither wind nor water were available as means of production, and only labor could be used as source of energy. There were three of these kind of mills in Latin America, all three were used to make silver coins during the Spanish colony. There was one in Mexico, one in Peru and one in Bolivia. The MoB presented at dOCUMENTA 14 in Kassel is a reproduction of the Bolivian MoB.