I found this in a second hand bookshop many years ago. Although it's rather battered and all the guilt has gone, it's still one of my favourite books (as objects). It's The Dance of Death by Hans Holbein. This particular edition is from George Bell and Sons in Covent Garden and is printed by Chiswick Press (Chancery Lane) in around 1897.

It's a tiny book (12x7.5 cm) and completely black on the outside, including the page edges. There was once guilt inlayed on the title on the spine but I think the small embossed skulls and crossbones were just black. It's topic is how Death is ever present, no matter who you are or what is your status. It also includes a history of Holbein's illustrations which date from 1538. I love this book it's one of my treasures despite the condition.