I wasn't expecting Matrix, as the decal background in the original photo looked more gold than the silver used for Matrix. Matrix was a mid-range tubeset introduced for 1986 but was subject of a Trek lawsuit for infringement on their Matrix rims, so the name was changed to Cromor in 1987. However, it does corroborate the age and explains the Gipiemme dropouts, though the amount of chrome and, internal brake cable routing are unusual on a Matrix frame of this era.
I don't know what the proper name for this model. There's no Matrix or Cromor model listed in the 1987 North American market models. As for groups, there is a wide variety to choose from. Given the era and level, Campagnolo Triomphe, Campagnolo Victory, Galli Criterium, Ofmage Master, Shimano New 105, Shimano New 600EX, SunTour Cyclone or SunTour Sprint would all be appropriate.
Last edited by T-Mar; 07-22-21 at 10:03 AM.