Mieres (oviedo): view of the iron factory of d. Numa ghilhou. 1. Iron and wooden bridge over the caudal river; 2. Tram; 3. Cock ovens; 4. High melting furnace; 5. Foundry furnaces and workshops; 6. Workers' housing; 7. Caudal river; 8. Coal mines —(according to mr. Sanahuja's sketch. ). Date: 30 July 1877.
