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Preserving Our Cultural Properties

Preserving Our Cultural Properties


Our mission is to preserve the Tokyo National Museum collection which houses approximately 110,000 items of cultural properties. Preservation of cultural property involves balancing public access with conservation needs.

This requires a comprehensive approach which entails the precise application of preventive and remedial conservation in accordance with our long-term vision. We practice primary care as a comprehensive approach through regular clinical diagnosis, preventive measure and remedial treatment for cultural properties based on various experiences accumulated over the years and through latest research results.


Entire Flow

Ageing and Degradation
Practical Research and Examination
Preventive Conservation
Remedial Conservation
Continuing to Make Progress


Ageing and Degradation

Damaged objects can never be returned to their original condition. Therefore, it is necessary to prepare an optimum environment that preserves their present state and slows the amount of further damage.
The degradation of cultural properties over time is unavoidable. Here are some causes and examples:

Vases in a display case at the Museum were broken during the Great Kanto Earthquake of 1923.

This sword guard, originally stored inside a damp kofun-burial mound, has broken due to oxidation.

A sleeve of this yoroi armor used to face a window has been discolored by sunlight, which contains ultraviolet light.


These photos show some pupae and a moth on museum objects. Insects sometimes get into storage areas with the objects.

Broken fibers along a crease were discovered after this Ainu garment was taken out of storage to be displayed.


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