The only work I'm aware of involving John recording with Stina was for her 'People Are Strange' album, which according to its credits, was recorded at Sweet Silence studios, Copenhagen. There's certainly no mention of Berry Street studios. Hmmm.......
I contacted John Tonks about the matter above and he confirmed that his sessions were in Copenhagen. He also wrote:
'It was a lot of fun and Stine was great to work with.
I think it's a great album too. Very proud of my involvement.'
Interesting that he referred to Stina as 'Stine' twice in his reply.