TCAN-7, Ancient Oil Lamp 1st Century Jewish Clay Oil Lamp. 7 x 5.5 cm, 55.5 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.