I have been working with Whitby Jet and its simulants; replicants; substitutes for over 10 years. There are endless resources on how to tell the difference between them all, if only people would take the time to look. There are several listings on at the moment stating that they are Whitby Jet items, when they quite clearly aren't. So, what am I to do? I have emailed sellers in the past. Some have appreciated my advice. Some have not. It leaves me stumped and rather angry that people are getting away with mis-selling.
My advice to all sellers.... Please do some proper research before listing.