What's the oldest human-made thing I can buy, just to have? I really want to own something that is hundreds or thousands of years old.
I would like to have a very old item, just for the sake of reflecting on history and humanity and as a conversation piece.
Requirements:
-Under $500, although less expensive is better.
-Smaller is better (I have a small living space).
Bonus points for recommendations of where to buy whatever it is you're recommending.
I'm thinking a coin is the most obvious, but am open to other suggestions and also to suggestions for a specific coin if there is some particular coin that is recognized to be the oldest common coin or something like that.