dude, it's from somewhere on the internet! Google image search.. (Although I think I have my stub at home....)
That's a pretty obscure show to be so easily available on the Internet. I mean, Rochester, c'mon? Is there a database of ticket stub images?
While Rochester may have seen better days and isn't on anyone's must-see list, it was big enough for the Police to bring their Synchronicity tour there for some reason. I think the populace all came into the town square near the Genessee brewery and sacrificed goats and Kodak Disc cameras hoping to entice the unsuspecting rock stars to the little burg. ... and it worked! The yokels are still talking about as they scarf down chicken wings..
(actually, that's pretty true, I mean *I* brought it up, didn't I?) It was a big deal.
It was also a fairly big show, held in what you would call a mid-sized stadium. Hollader Stadium has since been torn down (it was built in 1949 and it was crumbing). The stadium held 20,000 for football games, and for the concert probably 10-15k more people filled the field (think Kezar). So with all those attendees, it's not that surprising that a ticket stub was easily findable on the Google.
btw, here's a site that offers scads of ticket stub images, although it seems you have to pay for access???
http://www.lookatstubs.com