The inner hardcover books contains all the material published in the original hardback comics, including front and back covers, and printed on rather thin slightly yellowed paper. Note that there is no additional bonus material in this edition.
Now, here is the US slipcase edition published by Dark Horse Comics in 1995:
The inner red canvas hardcover book (10.5 x 7 inches or 27 x 18 cm, ISBN 1-56971-045-7, around 215 pages, cover price 114,95$) was packaged in a blue slipcase (approximately the same size of the previous Uk edition):
The book was individually signed by the authors and strictly limited to 1000 copies, my copy being #61.
As well as the material published in the original hardback comics, the book includes all front and back covers (except for #1), and is printed on rather thin paper. The "dislocating" USA B&W illustration is missing.
This limited edition also contains a 16 pages bonus section of never-before-seen sketches and commentary about the creation of Martha Washington.