These ancient British harness fittings are beautiful! They are made of bronze (now turned greenish with age) with colored glass inlay, and date from the first century AD. They are part of the collection at the British Museum, which describes the items shown:
"At the top and in the centre are plaques made simply for show. They would have been attached to the leather straps of the horses' harnesses. At the bottom is a horse bit that went between the horse's teeth. The reins would be attached to the rings on each side. On the left is a lynch pin, which fixed the wheel of a cart to the axle. On the right is a terret, a ring fixed at the front of the vehicle for the horses' reins to pass through. Finally, the small object is a strap union: two different ends of leather straps would be joined together with one of these." (link)
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