This important collection of photos documents the editing of the Nag Hammadi Library and related activities, in Egypt, during the mid-70s. They include photographs of the editors working at the Coptic Museum in Cairo; from the archaeological work done around the spot of the find; and finally, a series of negatives of the manuscripts themselves, taken in 1973, distinct from the facsimile edition of the codices later published by Brill. Unfortunately, photographs for only some of the pages have been uploaded, but according to the site the process of scanning and uploading will continue. There is also no possibility to browse the complete collection, but it can be searched by subject.
http://ccdl.libraries.claremont.edu/cdm/landingpage/collection/nha