One of mine also; it looks and is tough (I assume Rossin's proprietary design). I also like this shell from my Moser Leader utilizing an integral bridge design. I don't know the year of the frame nor the maker (late '80s?).
the BB shell on the Moser is an investment-cast unit made by Silva (Italy) No idea if Silva made any of the Rossin's IC bits: possible but possibly not.
EDIT: missed that Insidious C. beat me to it and ID'd the Silva BB shell already. Well we are both right, but he was quicker!
