The presentation of these 100-year old models was made possible thanks to the (financial) support of (in alphabetic order):

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The restorations of the models were carried out by Anita Koster and Jan Willem Pette from the Heerewaarden restoration studio.
The scientific supervision of this Utrecht presentation was in the hands of Prof. Dr. F. Beukers and Dr. J.A.C. Kolk; practical support was provided by ir. W.D. Schram.
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