Ozma of Oz

Two points are disputed and should not be relied on alone: sources conflict on the much-cited "O" in "Ozma" — some place it at page 11 in the Author's Note with the "O" present on the earliest copies, others at page 111 line 5 with the "O" absent — and the Bibliographia Oziana page cited differs between sources (38 vs 50); the leaves at 135/136 and 153/154 are described as cancels by one dealer and as integral by another