TCAN-14, Ancient Oil Lamp 1st Century Roman Clay Oil Lamp. 9 x 5.5cm, 55.7 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 as an enduring symbol of man's desire to conquer the darkness.