The expression I don't understand This is the excerpt of the book "Shawshank Redemption" There was a trusty, name of Kendricks, who was into me for some pretty heavy money back in the fifties, and it was four years before he got it all paid off. Most of the interest he paid me was information - in my line of work, you're dead if you can't find ways of keeping your ear to the ground. This Kendricks, for instance, had access to records I was never going to see running a stamper down in the goddam plate-shop. What does "running a stamper down in the goddam plate-shop" mean?