TCAN-16, Ancient Oil Lamp 2nd Century Roman Clay Oil Lamp. 8.5 x 6 cm, 85 grams. A lamp such as this might have lit homes at the dawn of the Christian era. In the presence of this simple object, we are in touch directly with a vanished world, with the people once warmed by its glow. Today it remains an enduring symbol of man's desire to conquer the darkness.