Merci Claude,
This is huge news, and you are right to point this out, no one has. Back in 1984, as a 21 year old kid, I once sat in an after-hours bar with Fred Hughes in Alphabet City around 3 or 4 am. He was a terrible anti-semite and an evil man. When Andy died, I suspect he sold several “rejects”, screens the artist rejected but that Fred saved, then he got the estate to stamp them as legit. Then there’s the question of the huge amount of stuff left in the estate that was liquidated, with the creme skimmed off by “friends” of Andy. Today with Warhol prices so high, I put a big premium on the works signed by Andy , sold in his lifetime, and with a gallery invoice or a Leo Castelli inventory number, everything else needs to be examined with a looking glass. There’s two classes of Warhol, the signed ones and the estate ones, and they should be priced accordingly. There are exceptions, like some rare things that were left in the estate , but for the big series I’m sure the rule applies. So, given all this possible controversy and liability, the authentication board drops out… this is seriously a mess indeed.