1. C.44.h.5, 2(519) Reference (shelfmark): C.44.h.5, 2(519) Title: Electro-magnetic apparatus and theodolite. Froment [at the Great Exhibition, London]. Photographer: Ferrier, Claude-Marie Scope & Content: Genre: Architectural Photography Close view of the two items, on display at the Great Exhibition. Collection Area: Printed Collections Languages: Not applicable Date Range: 1851 Extent: 1 item