From BruceBase:
No set details known. Steel Mill opens for another up-and-coming young Maryland based band Grin (led by Nils Lofgren). Springsteen first met Nils at this time. This show took place at Fillmore West (also known at the time as the Carousel Ballroom) either on Tuesday (17th) or Wednesday (18th) , these early midweek shows for new artists were rarely advertised. The Grin/Steel Mill billing was recently noted and confirmed by Vini Lopez. In a 2002 interview for Backstreets magazine Nils Lofgren put forward a different version of events, arguing that both bands were there to audition for an opening slot at the venue along with around 30 other acts. Each act, according to Lofgren, played 20 minutes.
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