I have a Box Set of the Hall of Many Panes.
It came with three full sized softcover books (8-1/2" x 11") marked 1, 2, 3, and a full sized stapled B&W paper BOOKLET with 20 numbered pages.
Page 20 has nothing but the number and is actually the back cover.
Page 1 is the front cover.
If the staples were removed and the pages stretched out, then there would be 10 sheets printed on both sides (TWO booklet pages to a side).
Each seperate sheet would be 11" x 17" in size.
Clearly not zerox.
