The first person I knew who had this lantern was Orc which was at least 5-7 years ago. Thus making the lantern's origin very old. I know he didn't sell his. Years later, I can't remember if I saw ShuShu with one or if he sold his to Blend etc... but the lantern came from either Arrirang or Balhae or Formosa (one of the 3 (99% sure)). And YES it has been duped but this was back then.
Folks, you have to understand the word "dupe" doesn't mean end all for an item, there are many items duped in the hundreds or thousands that are still asking for big bucks e.g. two story statues, marble tables, orc chief helms to just name a few. What matters is what someone is willing to pay for something they want. However, don't get me wrong, information (correct) is important as we should all be properly educated on such matters.