Wardie the three speed Ross Eurotour is Shimano 333 fitted or I should say at least mine is. There is a thread in C and V about Ross history or something , do a "Ross" search to find it, lots of great information. There are contacts within thread that could help you sort out the details.
On to this threads theme, Just found a 72 Sports in rather good shape, paint and mechanicals.
For those interested I am putting together a free 3 Speed Ride (non lycra preferred) get together this April in SE Michigan. The date is planned for the 21st. Will take place in the Algonac area, on, and around Harsens Island. Further details can be found in the Rides and Events section for the Great Lakes on BF. Seems to be a bit of local interest though many aren't thinking of riding yet.