A letter received by the writer in 1964 might be of some historical interest to collectors. In 1935 Prof. N.A. Halbertsma began collecting documents, products and various apparatus for the purpose of establishing a comprehensive museum. It was permanently housed in the "Bedrijfsschool" where it occupied an entire floor. Much of that material was lost during the bombing of Eindhoven in 1942. After the war renewed efforts were made to collect items of historical interest. It was planned (in 1964) to have a permanent exposition of this material in a few years in a special building.