Question: - Hello, I am looking for a copy of a particular icon painted, purportedly with the Shroud of Turin as a model. 
     As I understand it, this icon is considered by many to be the most accurate portrayal of Jesus available. 
     My question(s): to which icon are they referring?

Answer: Dear Sir Visitor , thank You very much for Your attention to our site and our work. Inorder toanswer Your question we made a short investigation, finding the theoretical material to see how historically appeared images, which would in the most close way be similar to the Holy Face of Christ Our Lord. 

Most trustable now seems to be a scientific article of recent times, dedicated to this problem. I think it was originally in English, but I found a Russian version only and so, unfortunately, I can not insert here the entire text of it. 

The article's titled "About the Byzantine history of the Holy Shroud of Turin", if I translate it well, written by John P. Jackson, Rebekke S. Jackson, Kit E.Propp in collaboration with I. Shalina.

The article speaks of author's investigations of the pleats(?) (folds?) of the Holy Shroud, with citates of some medieval texts, dedicated to the Shroud.   

  And in few words I may present the contents in such a way: 
     The authors discovered, that since the 10-th till the 12-th century the Holy Shroud was always kept in a box in Vlacherna Holy Virgin church, but for the great feasts it's upper part had been lifted up and fixed on a frame, showing people the upper part, marked by the Holy Body of Christ. 

     As a proval for this may be taken the fact, that in this historical period (11-th - 13-th centuries D.C.) appeared an eminent quantity of icons, called "Christ in the Tomb". 

   So, this icon usually representsthe upper part of the Holiest Body of Christ, rising over the edge of His tomb. This icon became a canonical and traditional and there are many images of such kind of images of various epoques. 

   Besides there are also some images, which became very famous and venerated. There is also one of them in Italy, in the Duomo of Lucca, it is called "Volto Santo", and I think it really has some reference to the Holy Shroud. So, concluding my letter I would wish to thank You for making me do all these researches because I discovered for myself many new things and concepts. And in case if You would like to have an icon or a fresco, realized with orientation on a medieval image of the Holy Shroud, it would be a very interesting work for us to work with this Holiest image. Faithfully yours Web master.