Gann sold a few courses. His commodity trading course sold, in the early fifties, for like five or ten large.

What Jones sold were the actual works of Gann ... books, courses, copies of charts, square of nine, square of twelve (144 - which he considered to be the most important), overlays ... his "Egg Calculator", etc.

The big course that Jones sold was a compilation of all of Gann's works, his classes, books, copies of papers, charts with handwritten notes, overlays etc., etc., etc.

The "Gann Wheel" came out a year or two later.

So, what he sold was Gann's actual stuff. However, it did not include the "True unpublished, untaught, and never divulged to anyone secrets".

We had to wait for the GREAT W.D. Scam to get those.