OK, here we go. The "hub cover", as Alfa calls it, carries part # 105.30.23.057.00 for the series 1 Euro 1750s. Having seen quite a few examples, and owning two of 'em, I can say with confidence that the hub cover is smooth black plastic, slightly concave on the face and has a silver Alfa emblem in the center.
The US version series 1 1750 and Euro 2l hub covers have part # 105.62.23.057.00. I recall from my '69 US GTV that the cover was black, slightly convex on the face and had a texture similar to that of the dash. It had a gold emblem.
The third part #, 105.44.23.057.00, is for series 2 Euro 1750s. Don't have a clue what this one looks like and the parts book view is from the rear. Anyone out there with a Euro S2?
Because I don't have a US S2 supplement (for steering wheels), no part # is available but I'm fairly certain that these were black as well.
Conclusion; the wood-like hub cover could have come on the Euro S2 GTVs and Spiders but I'll hazard a guess that it was a Berlina (sedan) only issue.
And apologies to Re-Originals for thinking they charged $1000 for a restored Hellebore wheel. They don't. It's $1400.
