You may think it's your grandmother's gravy boat. It's actually an 18th century chamber pot

It’s Thanksgiving. You’ve got a nice pile of sliced turkey on your plate. It’s looking a little dry, though, so you reach for the gravy. It’s in that ornate-looking gravy boat your grandmother’s been serving it in for years. She got it at a flea market a few decades back, but what she — and you, as you pour its contents onto your meal — might not realize is that it might not be a gravy boat at all. Watch NBC Bay Area News free wherever you are WATCH HERE