I'm reading through a pile of old Bike Worlds I bought from another list member, and there is an ad for a home black anodization kit.
Appears that sometime in the mid/late 70s Shimano introduced a Dura Ace kit in black and between the ads and bike reviews, it was quite a popular novelty.
I wonder if these poor campy hubs were subject to one of those kits?
Ann Phillips
Atlanta GA