The chest at the DAR museum is no longer considered to be a survivor from the Boston Tea Party. It's recently been dated to a few decades after the event. You can see it in their collections here:

https://collections.dar.org/mDetail.aspx?rID=2018.19&db=objects&dir=DARCOLL&osearch=tea%2520chest&list=res&rname=&rimage=&page=1

You can read more about its story here:

https://boston1775.blogspot.com/2022/12/taking-measure-of-tea-chests.html