No he signed several thousand arches papers for lithographs.
They were used to print a ton of mainly his works regarding Don Quhote (sp.?). They were authentic Dali lithographs but were “afters” effectively signed after his death.
He was told he was signing blank lithographs.......but there’s so much money to be made on his name, and so many shysters in the art world, there are questions about some of the paintings that showed up after his death.