Share 'Who saw them first?'

I was lucky enough to see Genesis first in 1980 on the Duke tour, but at the time I can remember thinking I was 7 or 8 years too late. When I saw Gabriel in 2004 a couple of young guys we met were extremely envious that we'd seen them so "early on"! So it's all a matter of perspective. But just out of interest I'd love to know who saw them first and where? Anybody at the Marquee in 72 or the Read…