Daredevil, Vol. 1 #185 (1982)

Guts
Foggy Nelson lives a more dangerous life than most know. When his blind partner's girlfriend comes looking for help investigating criminal activity in her company, Foggy decides to help without filling Matt in. He investigates in the guise of "Guts" Nelson, tracking the manufacture and use of bombs right back to the Kingpin, with a little help from Daredevil.
Release Date: 1982