Here's an example:
As you can see, the book lives up to its title, Chefs d'Oeuvre de la Gravure Moderne ("Masterpieces of Modern Engraving", the definition of Moderne being somewhat generous).
When I bought it on eBay, I was quite pleased. I still am — it has over 60 plates in it. Unfortunately, it's a little larger than I was expecting:
That random credit card in the bottom-left corner there is for scale. It's not quite the sub-A5 size I had in mind.
I suspect my wife may not be overjoyed to find it hiding in my office...