Wait, I'm being thick, but one option is to have the item fresh delivered, brand spanking new, from any time in the past, and the other option is to have the item as it exists today, wearing its long years? Do I have that correctly?
My answer hinges on the time-travel bit - do I get to go back and fetch it myself? If so, I'm in, and will gladly receive it freshly turned from the potter's hands.
But in that case my decision would rest upon destination as much as pot.
Otherwise, the present day antique, of course. With age comes depth of character, patina, all that.
Unless I can choose something that no longer exists, fascinating possibility.
Sen No Rikyu's favorite teapot?
Buddha's tea bowl, could I choose that?
Or maybe not. That's like wanting a splinter of the true cross or something, which I surely don't.
Still, immense possibilities here.
Give me an inch, I'll take a mile.