1968
21
Jun
Jun
Walter Graf died unexpectedly on 15 March 1968 during this construstion phase, leaving a painful gap. After his death his sons Helmut and Siegfried continued to run the company.
Walter Graf died unexpectedly on 15 March 1968 during this construstion phase, leaving a painful gap. After his death his sons Helmut and Siegfried continued to run the company.