Just it has been widely known that most relics were at best pious frauds.
And the image is made of red ocre and vermillion... vermillion as a pigment was a fairly new at the time that we have actual records of the Fraud of Turin.
The argument that the Shroud of Turin is a painting was throughly debunked by several scientists who have studied the Shroud, as explained in the video “The Fabric of Time.” There is no evidence that the image was been created by paint pigments of any sort. In fact the ongoing speculation now is that it was imprinted by some form of radiation. Go back and read through my posts on this thread for a point by point debunking, I don’t want to write it all over again. More importantly though, watch the video “The Fabric of Time” for the latest on all the scientific evidence regarding the Shroud of Turin and then see if your case still holds up.
By far, the weight of the evidence to date is that the Shroud of Turin is authentic.
No it isn't... unless you have evidence of that that is later than that of the micro-spectrographic studies that were done under electron microscopes that found no pigments, no red ochre (Iron Oxide FE3O2) and no Vermillion (Mercuric Sulfide HgS) in visible quantities... There was some randomly distributed on the shroud from environmental contamination or from paintings pressed to the shroud to impute its qualities to copies, but it was not statistically concentrated in image or blood areas any differently from non-image areas. What Iron Oxide found in the blood areas was identified as a different form of iron Oxide associated with Organic Blood residue and haemoglobin.
And exactly WHAT records are those of which we are in possession? I love it when skeptics start making things up... it makes it so easy to shoot them down. You are probably referring to the draft letter that the Bishop of Troyes was planning on sending, but never did send... as there are no records of it ever being received in either the Vatican records or the records of the Avignon pope. It couldn't be the recently discovered Sermon of Gregorius Referendarius, Deacon of the Hagia Sophia, delivered on August 14, 944, in which he describes the Shroud as having a full figured image of the Christ with blood stains... on the arrival of the image of Odessa in Constantinople? That record??? Or how about the 1204AD letters of Sir Robert de Clary in which he describes the lifting of the Shroud of Our Savior on each Friday in which the naked body of our Lord could be seen . . . Those records???? Nah, didn't think you were referring to those records...