For sell is one Pink Floyd The Wall LP originally autographed by Roger Waters, David Gilmour, Nick Mason and Richard Wright. This comes with a Certificate of Analysis from GFA Authentication who are Board Certified Court Qualified document analysts that work directly for the authorities (local and federal law enforcement agencies) in Southern California. You will notice not only is there a GFA hologram and matching certificate, but also an individual report on each of the 4 signatures on the LP. All documentation is included and will be sent with this beautiful iconic LP (GFA hologram, GFA certificate and 4 separate reports specific to each autograph on the LP). GFA Authentication has ABSOLUTELY, HANDS DOWN, the best forensic and scientific analysis that can be performed on a writing sample to determine its potential authenticity in the current market.