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The works of Willem Peter Hartgring are kept in the 'Dator Formarum Foundation'. ©

The Foundation looks after the value, place and movements of the Original Works.

This is done in consideration to clients, tax systems, the protection towards inheritants, and most and fore all

as a tribute to the works themselves.


All works are protected by copyright troughout the world,

through C.E.D.A.R , and the various National Laws.

Every work is administrated and followed by the Foundation by means of the Certificate of

Authentification , without which the work is lost to illegal trade or movement, and at risk losing value.