This replica from Master Replicas (reference SW-320) represents Darth Tyranus’ lightsaber at scale 1/2 (rather 0.45 in reality) as we can see in Revenge of the Sith.
This is a Gold Chase version. It was only obtained by luck, the gold versions being sent at random with the purchase of a classic version.
The replica is supplied with a base and a certificate of authenticity.
