Roman chariots are represented by a good bronze model (No. =502=; fig. 204) found in the Tiber. This is a racing car, drawn at full speed by two horses, one of which is now lost. It corresponds closely to the cars used for racing in the circus, such as may be seen in Case 110. At the end of the pole (appearing just behind the horse's mane) is a decoration in the form of a ram's head, an ornament of the same character as the four bronze objects placed with the horse-muzzles in the upper part of Case 51 (No. =503=). These have decorations in the form of the bust of a Satyr blowing a horn, and busts of a boy, an Amazon, and a Cupid respectively. In the lowest parts of Cases 50 and 51 are various bronze decorations, which have no doubt belonged to axle-boxes and other parts of a chariot, but their exact arrangement is not clear. [Illustration: FIG. 205.--ROMAN CAR FOR CARRYING IMAGES TO THE CIRCUS (NO. 506). L. 2 ft. 10-1/2 in.] Another form of Roman car is illustrated by the fine hanging bronze lamp representing the Moon-goddess (Luna), drawn in her chariot by a pair of bulls (No. =504=). The lamp was for three wicks, two on the outer sides of the bulls, and one at the back of Luna's head. The goddess is represented on coins of the second and third century after Christ in a similar bull-car.[56] A terracotta (No. =505=) is in the form of a four-wheeled hooded waggon, probably a travelling car of the type called [Greek: apênê] by the Greeks and _raeda_ by the Romans. In the top of Case 49 is a marble relief (No. =506=; fig. 205) representing a covered two-wheeled cart drawn by four horses. The sides of the cart are decorated with reliefs, depicting Jupiter and the two Dioscuri, Castor and Pollux. Probably the car is a _tensa_, used to convey images of the gods to and from the circus on the occasion of the games, and for other religious purposes. The relief formed part of a sarcophagus of about the third century after Christ.