Original 1st printing 20 x 13" concert poster for Iron Butterfly appearing at Mammoth Gardens in Denver, CO from 6/26-27/1970.

 Art by John Fish, medium-thick textured stock poster is in good/decent (B to B/B-) condition; there are tack holes in all four corners, along with a few tiny pin-prick spots hiding in the image area, a couple of light smudges along the bottom margin, a bit of light paper toning, a series of pronounced horizontal stress bends traversing the image area and a fairly heavy amount of curling to the paper, otherwise OK.

 Neat little oddball mid-1970 Iron Butterfly concert poster from one of Denver's largest rock venues (current home to Denver's Fillmore).