Original 1st printing 20 x 35" silkscreen concert poster for Michigan-based roots favorites Greensky Bluegrass appearing (*with the Lil' Smokies (13), Rayland Baxter (14) and Billy Strings (15), not listed) at Red Rocks Amphitheatre in Morrison, CO from 9/13-15/2019.

 Art by (and SIGNED and numbered 13/13 in pencil by) Chuck Sperry, this is the BLACK VARIANT.

 Extra-thick flat vellum stock silkscreen poster is in FANTASTIC mint/near mint to near mint (A/A- to A-) condition; an absolutely STUNNING example of this recent Sperry variant from the famed Colorado venue.

 Check out fan-shot footage of "Gumboots" from the 9/14 show HERE:

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