John: Only 60 Trecias were produced between 1972 and 1982. Then the fabricator went into a joint venture with Claudio Passoni and the later bikes were quite similar, somewhat evolved, but called Passoni. They are still produced for the Euro weight-weenies according to le Cycle, but are not as light as we routinely see from Seven or such when carbon and other trick parts are used.
Ken (weight-weenie who has a Hi-E Cosmopolitan but lusts after a Barra [French] post-1938 aluminum tandem) Wehrenberg-- near St Louis