TCAN-20, Ancient Oil Lamp 1st Century Jewish Clay Oil Lamp. 7.5 x 5.5cm, 72.2 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.