A collection of Greek, Roman and Etruscan bronzes in the J. Paul Getty Museum were examined by x-radiography, atomic absorption spectrophotometry, optical microscopy, and scanning electron microscopy. Unusual hexagonal grains on the surface of a bronze Roma are described, techniques of casting-on and the use of tenon-jointed limbs for a bronze incense burner are examined. Fibrous, whisker-crystals on a bronze Togate were shown to be malachite. Casting technology of a Greek bronze herm was examined and the objects were analyzed for 14 elements by atomic absorption.