Perusing AuctionZip.com and came across an auction by Finders Keepers, which is advertising an extraordinary number of signed guitars and albums, including a copy of Black Sabbath's Paranoid that I asked about authentication and COA: 

"This comes with a cert from Premiere Authentication Services who are out of business for many years. the closed up shop when the authentication business turned sleazy and pay for play/ . They were the best in the business and we look for items with them as the authenticators as we know they were the gold standard in the late 90's and early 2000's"

It's amazing the level of bullsh!t these people will pass along . . . 

https://www.auctionzip.com/auction-lot/Signed-Black-Sabbath-Paranoi...