I just have to built it
I have cleaned the shocker and I have to figure how building the headset. Seems to be the same system as Alpinestars T24, and I have to find the fork. And yes, why not a Pace.
The frame is very very small. How tall was Eddy Irvine ?
The headtube and seat tube angle looks to be about 60 degrees - nothing like the almost vertical seat tube on the Bill Stevenson pic. Is that right, or just the way the photos have been taken?
On the Stevenson shown on the picture, the front tire seems to be a little flat and the angle of the picture seems to make very vertical seat post and head tube.
In my picture, there's no fork, so difficult to have an idea of the geometry, until I built the bike.
But I don't think angle are 60! Near 70 as usually used on such bikes
What give me the idea, it's could be a Stevenson :
Same rear Risse-Racing suspension
Quite same frame with a big top tube which include the shocker
Same Fisher Dropout as Stevenson use on his bike
Front headset used on Alpinestar or some XS sized fisher frames