Genesis, around 92 had a rear facing seatpost clamp using shimano dropouts, and from memory 95ish forward facing. (don't take my word the detail is all available on threads posted here on retrobike)
But this is only a guide remembering they are a small builder, and things changed daily dependant on supplies customer orders etc etc etc.
With that said, it was a frame to hit a price point, in 95 full bikes started around £950 ish, and frames around £395 ish.
Of course unless the frames in hand, we are only going from sum pretty obscure pictures anyway to be fair.