Would anyone know what became of the archives of the Bell Telephone Manufacturing Company at Anverp (Belgium)? I am writing a review of a book  describing the computer developed at BTMC in the 1950s *, and it would be interesting to have information about this company's records : Were they sent back to IT&T central archives in the US, or destroyed…?

* Marie d'Udekem-Gevers,  La Machine mathematique IRSIA-FNRS (1946-1962),  Bruxelles,  Academie Royale de Belgique,  2011,  273 p.