The majority of Gregory-Aland 086 is currently held in the British Library. This summer I will be studying this palimpsest manuscript for my dissertation as it contains both Greek and Fayumic texts of John in its scriptio inferior. The manuscript was reused for a variety of purposes. The thirteen British Library leaves were reused for mathematical problems, and have recently been conserved and imaged with state-of-the-art technology (Coppen-Jacobs, 2009). Their original publicationis available online (Crum, JTS 1:3 :415-433).
The image above was published by Henri Munier, and identified by Crum as a further page of the same manuscript. The scriptio superior is a martyrdom. Siegfried Richter (Münster) identified this manuscript (CM 3890) at the Coptic Museum. Current transcriptions have been made only from the sepia photograph publish by Munier (above). The Munier edition is public domain, and can be downloaded, here.
I hope to make ultraviolet images of the manuscript, and also to share the images with my IGNTP collaborators in Münster and Birmingham. I believe that I have found a further leaf of 086 in another European library containing Mark, but it will be some time before I can say more. More on ultraviolet photography, soon.