The Richie-issimo part that secures the front derailleur to the seat tube was introduced in 2004.
Salient features include being precision cast, high-style, self-seating, a well for a slice of brazing material, and a design which allows for both traditional AND compact gears to be used on the same bicycle frame.
With the evolution of tubing diameters now including 31.7mm as a standard, the part has been reissued in UOS (über-oversize) dimensions. These new 31.7mm conforming braze-ons will be available in the first week of September in both steel and stainless versions.