I've been buying and selling vintage Reutter racks and the Perfect Match pads for them for a while now and finally decided (Kathy's urging) to keep one for Whitecloud.
We're attending a wedding in Santa Cruz this Saturday and taking a week or so to kick around the coast and redwoods after so we need luggage and a luggage rack which I just installed.
I've noticed (in photos, literature and on cars) that the early single-grill racks were finished (mostly) in a silver paint while the B and C twin-grill models ('60-'65) were finished (mostly) in a silver hammertone finish. We chose the correct (single-grill) silver though it's powdercoated not painted (please don't tell my PCA friends!).
I have discovered that if you ordered the rack from Porsche, you could have the rack finished in the same paint as your car, Like MusBeJim's black rack. I also learned that chrome plating was an option though I've never seen one done that way.
I also know that the curve in the rear upright (in the photo above the Porsche logo) was to match the curve of a spare tire tread, I just think it looks cool.