I will say there are some impressive fakes on eBay. Check this seller out. Close inspection of his AQ WEL power cord is needed before you see that the font for “SIGNATURE SERIES” is wrong, and the WEL signature is too even. Unless you had an original on hand to compare (as I do) you’d be hard pushed to tell the difference from the pics. I assume others familiar with the other brands he’s selling can spot similar issues
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F182920471906
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F182920471906