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Blued steel sheets : history, manufacturing and conservation : The case of a Ganz & Co projection and enlargement lantern conserved at the Collection Centre of the Swiss National Museum

Lefebvre, Alexandra

Mémoire de master : Haute Ecole Arc Conservation-Restauration, 2021.

The Collections Centre of the Swiss National Museum, located in Affoltern-am-Albis, in the canton of Zurich, conserves a projection and enlargement lantern designed by a well-known local company selling projection and photography equipment. This device, dated from the early 20th century, has the particularity of having its lantern made of blued steel. This surface treatment offering both...