This is the place where Stones fans can advertise anything for sale, wanted, trade or whatever, from fan to fan. Advertisements are for free. To see the old ads go here.
This article 'Uncut' from 2011 mentions, at the bottom of Page 55, a Dutch radio interview with Ian Stewart. I've never heard of it and couldn't find anything on Nico's site. Anyone out there might have more info or actually have it?