The object being incomplete, its purpose is not obvious. But it is suggestive of the probability of its having formed part of a helmet that Diodorus Siculus, writing only a few years after the conquest of Gaul by Julius Cæsar, describes the military equipment of certain Gallic tribes as including “bronze helmets with lofty projections rising out of them, which impart a gigantic appearance to the wearers; for upon some are fixed pairs of horns, upon others the shapes of birds and beasts wrought out of the same metal.” These horned helmets are represented on some of the consular medals, and the whole description of the Gallic equipment is so similar to what we know of the habits of the Celtic tribes of Britain, that it may be concluded that in this respect their customs may not have been greatly dissimilar.[56] And, in point of fact, there is in the British Museum a bronze headpiece found in the river Thames, near Waterloo Bridge, which, from its peculiar form, was at first considered to be a jester’s cap. But Mr. Franks has shown that it is a military helmet of native workmanship. It consists of a cap of thin bronze, with an additional plate at the back, decorated with scrolls of this peculiar character in low relief, among which are cross-hatched discs once coated with red enamel. From each side of the cap projects a conical horn terminating in a moulded button, and upon one side of the horn runs a string of small projecting studs. ----- Footnote 56: The common denarius of the family Furia exhibits a trophy formed of the horned helmet, the tunic of mail, the peculiarly ornamented oval shield, and the large war trumpet. On a denarius of Servilia a Gaul wearing the horned helmet appears aiming a back-handed blow with his long sword at a Roman antagonist. The name “Cornuti” itself is suggestive of this peculiarity. ----- [Illustration: Fig. 94.—Bronze Plaque found in Oland (actual size).]