I was going through my grandparents library and I found an incredibly old book that was all written in latin. I got curious so I asked my grandparents where they had gotten it from but they had no idea, they didn't even know they had it. But I did some research and came to the conclusion that the book is De Cive, and now I really, really wanna know old it might be. Do you guys have any tips on how I can found out how old it might be or do you have any estimates yourself? I took som pictures for you guys, thank you in advance for taking a look :)