OK, I'm confused. Relative novice in Mexican silver and I purchased something this weekend and I'm not sure what it is. I have a set of 12 heavy glasses (Champaign Style) in Sterling Silver. Each weighs about 6 Troy Ounces. The mark is Margo De Mexico. I asked a couple of dealers I know that sell silver and they assumed it was Margot De Taxco. Can't find anything on the internet and the one book I have on Mexican marks (just slightly better than useless) looks like it lists Margo De Mexico as a different person than Margot De Taxco but the book is so bad it's unclear if it is a different person or same person at a different time/phase of their career. I don't believe it is but I'd love some more info on this maker so I can narrow down a time frame or some more info. Can anyone enlighten me?