Lego 1999 Darth Vader keychain with silver torso

A few weeks ago before the silver torso Vader was recognised by bricklink and shot up in value I purchased a darth Vader keychain to have on my bag for 20kr (2 usd) on a Scandinavian bidding website called Tradera. I realised just last week that this figure had the exact same unique silver torso as the sw1515 figure but when I went to search it up I could only find one other person with it. You can tell that it isn’t the lighting making it appear brighter by the way that the lines marked on...