I'm not in the know here but I thought early DA groups weren't anodized...some of the vague pics on the Dua Ace timline show "plain" components. Or were both offered?
http://dura-ace.shimano.com/
Warren Young Toronto
Ray Coffey wrote:
> Thought somebody here would be interested... lots of black anodizing and includes dropouts.
>
>
> http://ebay.com/
>
> No connection to seller.
>
> Ray Coffey
> Boston