I just discovered this footage, nice footage of Genesis and what would have to be a pre 72.
And I'm not a guitar guy so I can't ID the guitar but I know it's a Rick also.
Oh...That would be a model 360/12. He later had Dick Knight combine both RIC's into one instrument to make the doubleneck RIC you've seen him play elsewhere.
Dirk, I won't tell you that I saw Genesis a whole bunch of times in the early to mid '70s and that I saw those Ricks up close from the front edge of the stage. No, I won't tell you that!