I recently bought this poster at a very reasonable price. It has a couple of huge signatures (about 9 inches across) by Roger Dean (the artist) and Bill Bruford (Yes original drummer)

The signatures are good, I am well convinced, but I was wondering if these were a "reprint" or more likely, an overprint. I looked carefully at the "ink" and it appears to be a genuine scribe, not an auto pen (but then again, this is not my area of expertise) I have high mag pictures of the R in Roger and a couple of other letters which show the imperfect felt tip mark.

What threw me off is the (C) copyright mark at the left of Roger's signature, which appears to be written in the same ink. If you are not familiar with Roger's work, he is high on copyright, so I am not all that surprised, but, I am now wondering if this may have been a mass production/not a true autograph

Another good sig is that the "g" in Roger writes over the "Dolby" poster print. I have googled many alternatives and have not seen another signature like this.  I would like to frame it if iti real, as I like Roger's work and this is a great auto. Would lik to hear some well informed opinions/comments on it.

Thanks