Thanks for the clarification. Easy for the uninformed to confuse the Momo wheel originally fitted to the 246 Dino and the steering wheels bearing the Dino imprimatur. They were both made in Italy.
Following your post, I zoomed in on DQ's photo to confirm that the hex screws are at the 12:00 and 6:00 positions. I also reviewed your pretty Prototipo images located earlier on this thread. Your restored Prototipo has two holes in the horizontal spokes and three holes in the vertical spoke. Although not immediately clear unless you lighten the CSL image, that wheel appears to have only two holes in each spoke. Does this indicate a different wheel style (droopy) or size? Is one more desirable than another?
The hole difference is due to the 6pm spoke wrap. Momo prototipos have 3 holes on each spoke. If you remove the wrap you can find the third hole. Case in point, @shanon has an original alpina prototipo with missing spike wraps at 10 and 2. You can see the line where the original spoke wrap ended and you can also see the normally hidden third hole.
