Original 1st printing 17 x 35" silkscreen concert poster for Michigan-based "jamgrass" act Greensky Bluegrass appearing at Red Rocks Amphitheatre in Morrison, CO on 9/23/2017. 

 Art by (and SIGNED, numbered 550/550 in pencil by) Chuck Sperry, extra-thick index stock silkscreen poster is in ULTRA-SHARP mint/near mint to near mint (A/A- to A-) condition; an absolutely STUNNING example of this recent Sperry design from the famed Colorado outdoor venue.

 Check out pro-shot video of the ENTIRE SHOW here:

https://www.youtube.com/watch?v=cfxdR2QkiTI