Have a '82 Cinelli Supercorsa so I'm aware of the seat lug difference.

Compared this frame with an Equipe firsthand, and there are small but noticable differences. Fork crowns are different (mine has integrated crown like all Cinellis from the 80s), all lugs have a slightly different shape (mine has no chrome lugs), clamp on derailleur versus braze on, and the weight of the frames. My frame is much lighter. Also angle of logo on seat stay. On all Equipes that I have seen logo is perpendicular to seat stay angle, mine has logo same angle as seat stay.