the BB shell is 68mm and I can't find a serial number. The odd thing is that when I pulled the BB off, the grit and crud was so think you could barely see the metal components. Once it was all washed away though, the cups and bearings were flawless. I wouldn't be able to tell the different between brand new and these. My guess is that they were replaced shortly before getting stored underneath a pile of dirt for a few years.

I'm not sure what press fit dropouts are, but they seem pretty normal to me. They look a little off probably because of the paint that moved around and rubbed off.

I looked at a few pictures of bridgestones, but they all have derailleur hangers and top tube braze-ons and water bottle cage mounts. I saw a picture of a Bianchi that looked like it could be the same frame, but that may be wishful thinking on my part.