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Open data on the museum collection

Collection data and images from the National Museum of Antiquities are freely available for re-use by developers under a Creative Commons license. Object descriptions (metadata) are available under a CC0 licence. The images (content) are made available under a CC BY licence. This means that you are permitted to copy, adapt, distribute, or perform this material without permission from the Dutch National Museum of Antiquities. We would appreciate being mentioned as the source of the material. The correct citation form is: National Museum of Antiquities, Leiden. We would also be very happy to hear about your uses of this material: website@rmo.nl.


An API is available for live search requests, and there is also access through OAI-PMH for synchronization of the entire database. Images can be provided in various formats.

Available fields (as relevant, in Dutch):

AfdelingDepartment of the museum
AfmetingenlabelDimensions of the object
BeschrijvingDescription of the object
CityCity name
GeoStringCountry, province
InventarisnummerInventory number in the museum collection
LiteratuurReferences to this object in the professional literature
LocatieSite where the object was found
MateriaalMaterial(s) of which the object is made
ObjectnaamType of object
TitelTitle of the object
VerwervingHow the museum acquired the object
VindplaatsComplete record of site where the object was found
europeana_objectURL of thumbnail image
europeana_isShownByURL of medium-sized image
europeana_isShownAtDeep link to the object on www.rmo.nl

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