Charles Freeman refers to a large number of engravings of the Shroud during expositions, over quite a long period of time, in which it is almost always shown clearly delineated, wearing a loincloth (and sometimes a crown of thorns), with clear space between the upper arms and the body, and well defined feet not touching and splayed slightly apart. His contention is that they are all so similar that they must be based on a common model - the Shroud. However, he does not explain the fairly large number of "extractum ex originale" copies, from roughly the same period of time, showing a very faint image, with no loincloth, and the feet ill defined and either overlapping or at least pointing inwards. These too are all sufficiently similar for us to suppose they must come from a common model. The trouble is: the two models are sufficiently dissimilar for us to wonder who is copying what! As to the 'correct' image, whichever it is, I have to disagree with Charles on cultural grounds as to its origin. A miraculous image of Jesus should be clearly miraculous - in other words not at all 'natural looking.' Other miraculous images (particularly Veronicas) are obvious paintings, but that doesn't matter (to a true believer), as Jesus was quite as capable of miraculously producing a painting as of any other image. In this case, a forger might have gone out of his way to produce a brightly coloured illustration of Christ lying on the Shroud. For the Quem Quaeritis ceremony, however, exactly the opposite was required. the miracle was the miracle of the resurrection, not that of the Shroud, which only served as evidence of the main event. As such, the Shroud image, if there was one should do its best to look like the imprint left behind by a sweaty, bloody body.
So, paradoxically, although I like Freeman's suggestion that the Shroud was made as a prop, I believe it must then have resembled the Shroud as it is now, a faint image resembling a contact print, whereas the well defined and obvious fakes he shows in his engravings fit the 'straight forgery of a miracle' scenario better. I really can't decide what the truth is.