This seems rather unscrupulous at a minimum. Yes the 77 was struck with the shallow N along with others. I think that Thomas Tusser had this auction in mind when he said "A fool and his money are soon parted" https://www.ebay.com/itm/1877-India...&algv=ItemStripV3&_trksid=p5411.c100168.m2941
For some reason, my uncompleted post got sent (clumsy fingers?). Anyway, I think the seller is only mentioning the shallow N to support an unspoken contention that the coin is genuine. What's wrong with that? Or are you objecting to the coin's horrible condition? I just don't see anything deceptive or fraudulent about the offering. Yes, he has weaseled his narrative to limit or eliminate any responsibility for the coin's genuineness and grade. But that is a standard practice on eBay for raw coins.