authentic, as far as I know.
Im sure anyone watching ebay etc. will be aware that thousands of Horsehoe chips have been bled out over the past couple of years, by the owners of the rack, including many that were once rare.
All I was saying that this chip is not one of those that has been bled out, and I dont believe it ever existed in the same quantity as many of the others anyway. I think the fact that I had 4 offers for it within an hour bears that out.