Two studies in red conté along with the final painting, which was published in Epic Illustrated #30:
One of the main frustrations of the various books on the art of Jeffrey Jones is the lack of documentation regarding mediums, supports (e.g., masonite, mounted canvas, stretched canvas, whatever), sizes, dates, etc. Trouble is, Jones himself never kept proper records of his work, and his publishers apparently have not had the wherewithal to locate the works in order to fill in the gaps