So I recently won this from Gotta Have It's latest auction.  I am just a small time collector but and have gotten a few things from GHI over the years. This was by far my biggest purchase to date so I'm a bit nervous. I love the poster and figured that since it is an original that it's chances of having fake signatures would be less. I've also heard that GHI is a fairly reputable source, but I am the furthest thing from an expert in this area. Any thoughts or opinions to its authenticity would be greatly appreciated!