1. 561.b.2, 6(55) Reference (shelfmark): 561.b.2, 6(55) Title: Aqueducts - Arches of Nero, A.D. 60, on the Caelian, near S. Stefano Rotondo, shewing the construction of one of the best examples of 'opus lateritium.' Photographer: Unknown Collection Area: Printed Collections Languages: Not applicable Date Range: c 1870 Extent: 1 item