As you note, someone signed that in pen, that isn’t part of the label itself, so I have no idea. It could be anyone.
Villa Antinori is a good, consistent, food-friendly wine for something reasonably priced and easy to obtain. A solid choice off of restaurant wine lists. Glad you found it and enjoy it.
Come hang out with us some more. People talk about expensive wines, but we also discuss wines at this price range. And there is a lot to learn on here that applies to understanding and appreciating any kind of wine.