"The photos were taken 13 December 1973 in Brussels when the band did a press conference. That explains why both Dutch photographer Van Heije took pics there, and also why similar pics exist from a UK photographer. I think Sounds magazine (UK) was in town for a report.
It's kind of ironic that they never played in Holland in the year they were the most popular ('74). Jon even posed with the 'Veronica Magazine' to advertise becoming a member so they could make their 'pirate' status legal." Tonny Steenhagen
Tonny's article on Deep Purple in Holland 1969-76 appeared in
Darker Than Blue magazine number 54.