It does say, "...each with an original signed print by Charles Bukowski." - What does other signed and numbered books with a print say?
By the way, colophon is supposed to come from the Greek for summit or peak of a hill or mountain, but(t) colo in Greek means ass, bum, rear end. So I always thought of colophon as the ass-end of the book.
I used to own one of the 150 numbered copies... it was the same as in Scott's listing. I believe they are all actually signed (and dated) as well as having a signature printed as part of the art work and again on the colophon....