Bottom bracket yesterday. Pulled "Space Crank" and it will go somewhere more appropriate and will be replaced (if only temporarily since I'm a LOOK guy) with my DA DynaDrive per Repechage's hint.

Tubing: Spiral in the seat tube, reinforcement in the wheel stay to confirm "X" tubing, but the downtube is smooth as a baby's bun!
I wonder if it was Monday in Treviso, or the builder's tube choice to obtain the desired Pinarello ride?

Wheel stays are socketed!
And, a few photos of the BB to aid future research.