The Primo Showbar was a rock and roll dance club at 217 S. Ashley Street from July 6, 1973 - March, 1974. It replaced Mackinac Jack's at that location.
The concert posters for Primo were designed by Gary Grimshaw.
Show list: http://www.motorcitymusicarchives.com/primoshowbar.html
Early Bob Seger shows: http://www.segerfile.com/concerts.html
One String Sam played the Primo Showbar in 1973; photo byLeni Sinlclair.
Primo Showbar advertisement in the Ann Arbor Sun, Rock & Roll Dancing!, October 15, 1973.