B in Appleton, WI is looking to sell her Atlantis and her Quickbeam. I think they're both 56 cm.
I don't know many of the details of these bicycles, but the Atlantis has custom pea-sage-colored paint, and the Quickbeam has a fixed/free flip-flop set-up.
As I said, I don't know the bicycles, and I've never met the seller. If you are interested in buying one of these, contact bikingb at mac dot com.