"Double Magic" (Burling Hull) is shown here in original manuscript form [orange covers], and an early reprint.

The manuscript in orange covers is complete with gimmicked cards, and both manuscripts include a treatise on "How to Make Double Faced Cards".

Hull, not known for understatement, billed this as

"Startling - Amazing - Unfathomable - Astonishing - Unbelievable - Inexplicable DOUBLE MAGIC, OR 18 Astounding Card Mysteries."
The detailed performance photographs are typical of Hull's work. Hull was among the first to make extensive use of instructional photographs in his publications, including his manuscripts.