The artwork is by renowned postcard artist Rick Geary, and the subject is Red Rocks Amphitheater, another in our series of Denver-area landmarks. The band on the stage is Led Zeppelin, because 2018 is the 50th anniversary of Zep's first concert in the USA, which was in Denver (but not at Red Rocks)!
If you'd like a postcard, the club sells them for $1 -- or you get two free if you join! If interested, just let me know...
Recent cover scans I added to GCD:
Disney·Pixar Wall·E Manga
Disney Stitch! Best Friends Forever!