Methods for the evaluation of treatments for discolored black-and-white films and papers in chemical solutions have been further refined. The morphology of silver grains in untreated and variously treated black-and-white prints and films has been recorded and examined closely. Transmission electron micrographs of particles of image silver demonstrate that chemical treatments of black-and-white images do not result in a weakened or deteriorated grain structure. Rather, it can be demonstrated that the final step in the proposed restoration procedure, which consists of selenium toning, leads to a more stable black-and-white image that is unlikely to deteriorate chemically again in its future life. These conclusions are confirmed by the results of accelerated aging tests. -- AATA