1. C.44.h.5, 2(567) Reference (shelfmark): C.44.h.5, 2(567) Title: Philosophical instruments. Deleuil [at the Great Exhibition, London]. Photographer: Ferrier, Claude-Marie Scope & Content: Genre: Architectural Photography Close view of a group of scientific instruments, including a vacuum pump, on display at the Great Exhibition. Collection Area: Printed Collections Languages: Not applicable Date Range: 1851 Extent: 1 item