Today's Blind Items - The Future

This three named celebrity died five decades ago. She was A+ list in her corner of the art world and also in certain circuits. Most of you will have no idea who she is or was. She was also the first to do what so many do now. She was so good at what she did, people still can't figure out how she managed to do it. There were extensive photos taken of her work and also several films made too. Archivists and people in her field who look at those photos and movies today say the techniques she used and some of the ink she used were not even invented until a solid two decades after her death. So, how did she accomplish it? Even her own daughter, who went into the same field had no idea.