The collection of monument photographs selected for The Memory (more than 10.000 in total) consists of three sections:

• the oldest glass plate negatives in possession of the RDMZ from the period 1906-1915, mainly the work of G. de Hoog
• the Steenbergh collection: glass plate negatives, made by C.J. Steenbergh in the period 1910-1935 for the journal "Buiten"
• part of the collection of old prints, built up mainly through donations since the beginning of governmental conservation efforts in the Netherlands

The photographs in The Memory are a selection from the collection of the Rijksdienst voor de Monumentenzorg (The Netherlands Department for Conservation, RDMZ), comprising about 400.000 photographs.
Read more about the RDMZ