1. 1730.c.5, 1(30) Reference (shelfmark): 1730.c.5, 1(30) Title: Viaduc de Duzon. (Ardèche.) Route Départementale No. 12. Photographer: Unknown Scope & Content: View of the eight arched masonry viaduct (built 1869-70) crossing the valley at Duzon, six kilometres from Tournon. Collection Area: Printed Collections Languages: Not applicable Date Range: 1870s Extent: 1 item