detail of dirty hands holding hammer and rod

20s 30s accessories ancient art black blacksmith charcoal close closeup coal craft craftsman craftsmanship detail dirty effort equipment farrier farriery finger fingers forge forgeman forging furnace hammer hammering hand hands handwork hard hardware hearth heating heavy historic hold holding indoor industry instrument iron job man manual manufacture manufacturing metal metallic metalwork object occupation outdoor people profession rod shop sledge sledgehammer smith smithery steel strength strong tool tools up work worker working workshop young