3TTT is similar to ITM in terms of quality and market volume. With 3TTT being slightly more common on Italian C&V high line bikes.
I think both brands are generally considered to be slightly below Cinelli when it comes to desirability as both companies make fine quality components.
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72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)