1. 1730.c.5, 2(47) Reference (shelfmark): 1730.c.5, 2(47) Title: Viaduc de l'Osse. (Chemin de Fer du Midi.) Photographer: Unknown Scope & Content: View of the single-line box girder viaduct across the Osse Valley on the Agen-Tarbes line, built 1867-69. Collection Area: Printed Collections Languages: Not applicable Date Range: 1870s Extent: 1 item