Hey Trev,
I had photos of the fork bottoms ready to post but was shut down by the "file size". Odd due to being able to post several at the same time earlier in the thread.
Anyway, no allenhead screws nor holes - just axle clamp bolts and fender strap bolt tabs. The axle slips through the left fork bottom and threads into the right fork bottom - if that helps w/identifying things. So that begs (another) mystery question - why put an A65 nacelle on A10 forks??
Saw another SR ('61) with a nacelle so it looks like it's going to stay after all. Buy a separate rev counter and mount it centrally in a bracket bolted to something over the top yoke is the plan.
Thanks,
Steve