TOMMASO- Itlay.

more here- http://lopro.blogspot.com/2011/11/tommaso-bikes-colorado-usa.html

Despite the Butterworth decals (Butterworths are a Sheffield bike shop) this frame is a Tommaso – these were built in Italy by some of the top contract builders in the 1980s and 90s and sold in the USA. This lo-pro is really rather special with curved top tube and curved seatstays and is beautifully built.
from-
http://hilarystone.com/