The most recent thing I have read in this line was J. R. Butler, The Quest for Becket's Bones (1995). Interesting but it left me unsatisfied, much like my reactions to Television documentaries. I did look at an older book on the Cutherbert relics at Durham - Relics of Saint Cuthbert (1956). That included substantial articles on the artifacts in the tomb. tom izbicki %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%