In the edition of 8th august 2021 of music magazine OOR photographer Ernest Potter talks albout the picture he made of Frank Zappa just after the interview Co de Kloet had with him in the Mariott Hotel. (In dutch)
In an interview on youtube (check out 15.30 min) photographer Ernest Potter talks about his favorite photo. This is the photo of Frank Zappa you can find in the galleria in Frank & Co. This is the link to the interview, which is in Dutch, with English subtitles.