People seemed to enjoy seeing Cicero in the DB armor, so here I go again, a little less rough than last time.
For clarification: Since Cicero is from Cyrodiil he obviously wore the Cyrodiil DB armor, namely the one you get in Oblivion, while he was still an active assassin. (he even wields the Ebony Dagger from Oblivion)
But HELL is it hard to get decent reference material of that armor. Skyrim is everywhere and Oblivion seems kinda left out.
Cicero (c) Bethesda