Gold artifacts were subjected to non-destructive and non-radioactive methods -- proton induced x-ray or gamma-ray emission -- to determine the presence of silver, gold, cadmium, and copper on the surface. A computer-assisted data handling system was used in the calculations. The presence of cadmium at levels of several percent in artifacts of certain provenance forces a reassessment of the idea that cadmium is an indicator of modern manufacture. Ancient pieces with cadmium in excess of 5% show no detectable zinc by this method (less than 5%). Modern solders contain zinc up to. 2 times the cadmium content. See also AATA 19-1822, 20-20, 20-214, 20-246, 20-742, 20-766, 20-1093, and 20-1119. -- AATA