Okay, here's the problem. In the intro to this collection of short stories, Ed McBain says that only one of them was previously published under the McBain name, and that was as a reprint. But the book gives no publishing information. We don't learn when or where or under what names the stories were originally published. I read the paperback, so maybe the info's in the hardcover edition. I would hope so.
The first and last stories in this book are also the first and last stories in McBain's more recent collection, Learning to Kill. Some of the others appear there, too. "Kiss Me, Dudley," for example. (When I was a kid, I thought this parody of Spillane was hilarious. Now, not so much.) But there are other stories that aren't in Learning to Kill ("Skin Flick," for one), and they all illustrate McBain's strengths as a story teller. If you have one collection, there's really no need to own both, but I'm glad I do.